Angel Tales is yet another of a long line of anime harem shows being released in the US. (A harem show, for the uninitiated, brings one guy in proximity to a number of girls, all of whom have some kind of interest in him.) The quirk in this one is that all of the girls are the reincarnations (as angels) of various pets that main character Goro has had over the years. In one sense, it's no sillier than many of the other excuses these shows come up with to have girls piling into one guy's life, but it's almost disturbing, as these girls all retain memories of being animals, yet are interested in Goro.
Despite that one oddity, Angel Tales is simply harem show formula. It lacks the zaniness of a Love Hina or Happy Lesson, and the sweetness of an Ai Yori Aoshi. It just sort of is--not bad, not good, sometimes funny, sometimes not. The focus of the show seems to be bringing in new girls/pets--up to eight at the end of this disc, with more seemingly on the way. The show doesn't really do anything with any of these characters, beyond introduce them and identify their animal past. It is as if the whole show is on autopilot. Oddly, the English dub falls into this same trap--some of the better voice actors are in this, yet the show sounds like everyone just wanted to get in, read their lines, and get out.
It would be hard to recommend Angel Tales. While it's not bad, it's not much of anything. If you like the harem show dynamic, there are quite a few better choices.