* BrokenBase: Steven Foster is possibly the most infamous ADR Director in the anime industry, as he is either seen as an example of {{Woolseyism}} with shows like Manga/CromartieHighSchool and Manga/HighSchoolOfTheDead, or the face of everything wrong with dubs due to his use of ObligatorySwearing and awkwardly placed Pop Culture references. (To put in perspective, ''VisualNovel/{{Clannad}}'''s dub became better received ''after'' he was replaced by Janice Williams). Fans don't have to worry about him anymore though, as he recently left the company.
** While Creator/{{Funimation}}, Creator/VizMedia, and even Creator/AniplexUSA have had at least one of their properties aired on Creator/AdultSwim's Creator/{{Toonami}}, Creator/SentaiFilmworks has yet to have any. Some fans feel that Sentai's catalog is too niche to be Toonami worthy (the block tends to stick with more mainstream shows like ''Manga/AttackOnTitan'', ''Manga/BlackLagoon'', and [[Anime/DragonBallKai popular]] [[Manga/{{Bleach}} shonen]] [[Manga/{{Naruto}} titles]] in [[Manga/OnePiece general]]), and that bad blood between the two going back to Sentai's days as Creator/ADVFilms would hamper any sort of working relationship, while others think titles such as ''Manga/HighSchoolOfTheDead'', ''Anime/Persona4TheAnimation'', ''Anime/GatchamanCrowds'', ''LightNovel/LogHorizon'', ''Manga/AkameGaKill'', and ''Literature/MardockScramble'' would work fine as additions to the Toonami lineup, and help both Toonami and Sentai Filmworks expand. Regardless, the relationship between Toonami and Sentai Filmworks, as well as the possibility of airing shows from the latter, remains unclear at this point (though comments from both parties point to the two being on good terms with each other, which at least disconfirms the "bad blood" rumors).
** Sentai's tendency to preserve JapaneseHonorifics in their dubs can produce some polarizing reactions. On one hand, some purists prefer this since it keeps the script more intact, especially since it can difficult to dub something without said honorifics without losing some meaning in character dynamics or conversation (especially if the honorifics get directly referenced in-series). On the other hand, this makes it much harder for the dub to be taken seriously since english voice actors, especially ones newer in the industry, will be unfamiliar with using the honorifics, often leading to awkward or unnatural sounding recordings.
** While fans have praised Sentai Filmworks selective dubbing policies (with some of it based on legal streaming views i.e. Crunchyroll, Hulu, and their own The Anime Network along with sub-only DVD sales) when it comes to dealing with niche titles, 2014 was the year where Sentai Filmworks started to make questionable decisions on ''what'' titles to dub. Popular anime titles and fan favorites such as ''LightNovel/GoldenTime'', ''LightNovel/ThePetGirlOfSakurasou'', ''Manga/{{Haikyuu}}'', ''LightNovel/MaoyuuMaouYuusha'', and ''Anime/CaptainEarth'' were given sub-only treatment while titles that were near universally panned such as ''[[VisualNovel/DiabolikLovers Diabolik Wifebeaters]]'', ''[[VideoGame/AmnesiaOtome Amnesia]]'', and ''[[LightNovel/MahouSensou Magical Warfare]]'' with English dubs. Some think that it's mainly because these titles didn't do sell streaming wise or wasn't well-liked, these titles were given higher priority in dubbing to add more appeal for home video release over popular titles that can sell well enough without a dub rather than the fact that ''their customers themselves'' have poor anime preferences.
* InternetBackdraft: In [[ImageBoards some corners]] of the internet, Sentai is eponymous to TheyJustDidntCare. They are notorious for their ocassional lazy dubbing jobs with casts made up of many no-name or very inexperienced voice-actors; an inability to consistently make proper translations when the English is literally on the video; putting obnoxious blurbs on the covers of some licenses that degenerate works into pure FanService; and allegations of shipping out ''blank discs''. There are people that would rather pay $300+ on imported [= BDs =] than $50 for Sentai's. Thankfully, they do leave Japanese audio as a second track, usually with official subtitles.
** Their decision to license and dub ''VisualNovel/DiabolikLovers'', ''[[LightNovel/MahouSensou Magical Warfare]]'', and ''VideoGame/AmnesiaOtome'' and giving ''LightNovel/GoldenTime'', ''LightNovel/ThePetGirlOfSakurasou'', ''Anime/CaptainEarth'', ''MAnga/{{Haikyuu}}'', and ''LightNovel/MaoyuuMaouYuusha'' sub-only releases ''did not'' go over very well.
* MemeticMutation: #[=SentaiNoticedMe=] [[labelnote:Explanation]]Pun from "Sempai noticed me." Sentai Filmworks is one of the most interactive anime licensing companies in North America in the internet social media; They will frequently directly reply to the fans' Facebook and Twitter posts, as well as favorite and retweet said posts or any posts aimed towards them that they seem to like. If your tweets or Facebook post is favorited, it's relatively common to reply with #[=sentainoticedme=] immediately when noticed.[[/labelnote]]
* SoBadItsGood: Some of their dubs may fall into this category at worst.