So here are my thoughts:
Rushed? No. I never got that feeling at all. What I felt was, "Hey, something happened!" Seriously, I'd rather Toradora be mostly comedy in the first half then drama in the latter half than another soap opera. I do not want another Suzuka or Bokura ga Ita where the characters spend 24-26 episodes in a love/hate relationship. If that is "normal" for you then so be it. But in my opinion, Toradora had one of the best pacing I've seen. Starting from episode 13, it gradually transitioned into a school drama while retaining some of its comedy. I've always said that the best drama should be one cours (~13 episodes). Well, Toradora is 2 cours but still presented believable drama, so that's a huge plus. In a way, I get to see more character development without the overly dramatic feeling that bogs down the plot.
Well see, that's the good part. The bad part was that even though it's a drama, it was mostly light drama, which means that it is somewhat episodic. I have a problem with episodic or semi-episodic anime, because they are largely hit or miss. That was the case with Toradora. Some people loved episode 17, but I did not. Toradora was for me 2-3 episodes of excellence then 1-2 episodes of average, but it never went below that. Overall, it was a nice watch and it kept my interest throughout without fail.
The thing I want to mention was that I did not love the first 12 episodes. Taiga did not appeal to me. I saw her as just another tsundere lead voiced by Rie Kugimiya. She was completely cliché without a unique personality. My rating for Toradora then was about 5-6 for the first maybe 7 episodes, because it was "just another romantic comedy series." I believe things started to get better when Ami appeared (even though I hated her). The episode where they went on vacation and wanted to scare Minori was the first time I said, "Wow, this might turn into a good series." After that, I simply fell in love with Toradora.
Now, it's time to actually talk about the last episode. In short, I believe that it is one of the best ending episodes ever. The kiss scene, like Crisu said, was one of the best I've seen--so innocent yet so romantic. Taiga's decision was sad but emotional in a way, plus it also made their reunion that much better. Also, that is probably one of the best confessions I've seen too. No wonder it took Taiga by surprise, because it took me by surprise. Crisu is also right in that Minorin's feelings were wrapped up beforehand, but I disagree that Ami's resolution was a bit too tame. In fact, everything is great about the last half of Toradora, and with a great ending, I loved it.
In conclusion, I like the fact that J.C. Staff crammed 10 novels into 25 episodes. Any more would become a drawn-out love/hate relationship, which I would hate. Having 25 episodes gave Toradora a very distinct comedy/drama flavor, not typical of the usual romantic comedy. I love how pretty much every main character was developed fully. Technically, the series almost perfect, but I just do not love it. To make an analogy I already did in IRC, Toradora for me is like appreciating the beauty/techniques of ice skating while personally not loving it. It is a great show, but only the last half was to my taste.
Final rating: 7/10