The show has a unique charm to it. The human characters are not as interesting (save for Blythe, Mrs. Twombly, Biskit girls...) but the pets absolutely steal the spotlight. The three male characters are my personal favorites, with Sunil having been my favorite since the first time I watched. Russell and Vinnie tie for a very close second.
It has its own humor. It's not a girly show, despite what it seems. It isn't an overly-cutesy girly, sugarcoated mess. It's actually a decent show, from that standpoint.
I first watched it Christmas Day 2012. At that point, the first eight episodes had aired and I watched them all in one day. I loved it. Sunil was my immediate favorite, followed closely by Russell.
Personally, I love it. I have loved it since the first time I watched. I found it funny, I was laughing at a lot of things that happened. I have three friends that are bronies, and I tried to convince the three of them to give it a shot. One of them refuses to, because he doesn't want to become hooked on it. Another one saw it, said it wasn't their cup of tea. The other one watched three episodes (Gailbreak, Mean Isn't Your Color, and So You Skink You Can Dance, to be exact), and liked them, but hasn't watched any more of it since.
All in all, good show, just needs a bit more love.