I enjoyed the project I was able to work on, and there was always help available when I needed it. Everyone was very helpful and not condescending when I didn't understand something.
What I wish was different
I wish I had been more prepared for the internship to start. As it was, I did a lot of on-the-job learning, which is okay to some degree, but I still wish I had known a little more going in.
It's a good idea to learn about things like what programming language/software you'll be using for you internship before the internship starts and get a head start on the learning process, so you're not totally thrown in the deep end when it begins.