The thing I looked forward to most on my trip was ...

The thing I looked forward to most on my trip was seeing castles. This place was worth the cost of admission.
Although crowded, it did not feel overly crowded. Sometimes you'd have to wait a few minutes to get into a tower's exhibit.
For the Crown Jewels, it says outside in the queue 20 minutes, but it's another 20 minutes once you're inside. So it took me about 40 minutes of waiting and then I enjoyed the display for about 30 minutes. I actually really liked the tower next to the exit where they keep the crowns with the jewels removed. It gives you a better perspective of how many jewels are on these things.

We did the free beefeater tour. But since it was so hot, we only went to the chapel to sit and listen. It was very informative and funny. Don't skip it.

Overall I stayed about 4 hours to walk all the towers and look around. The food looked pretty good and reasonably priced but I didn't get any.