I enjoyed seeing how I could apply the material I've learned in my ECE courses to test real device application software. I never felt rushed to get work done, and had a group of fantastic mentors I could interact with on-demand if I ever got confused or needed help. Overall, I loved it.
What I wish was different
There really wasn't anything profound that stood out as bad from the experience.
Advice
Don't be afraid to ask questions. Having mentors I could regularly come to for questions was key to my success.