Just so you know I read the light novels (10 volumes), so I have more or less a point of comparison and reference.
Let me tell you how good it is. First 2 episodes ended me up watching the whole series in 2 sittings (12 or 13 eps/day, which is very abnormal IMO) and ended up rewatching 2 more times and reading the novel in a span of 2months.
Toradora. Most people have no idea what the title means. Neither did I when I saw this the first time. I assumed it was some typical rom-com story of unrequited love. And yes, it's exactly like that in the first episodes.
However, as the story and characters began to develop, it presents something deeper than just simple romance. Cherishing friendship, staying in "comfort zones," letting go, et cetera. It doesn't focus on the shallow side of romance. And that's what sets it apart from other anime of same genre.
One very strong point: character development.
One weakness: it was rushed towards the end. The anime somewhat drifted from the novel in around ep 22+ (i think). So I recommend reading the novel at least from V7 onwards (better if you read from the start, of course).
Nevertheless, the anime is very very good and is recommended to everyone.