I just did the tea at Rose & Crown yesterday. It was great! We got four hot teas and an iced tea, a plate of sandwiches and a plate of scones. Everything was delicious and the staff at the Rose & Crown did an amazing job teaching us about the history of tea, how long to steep, etc. It was all very nice, relaxing and well done. We even got a few tea bags to take home. Keep in mind it's not a traditional afternoon tea with the tiered plates and such. It's more of a "tea experience." I was traveling solo that day and they sat me with 3 other ladies, who were all very nice.
The only negative about it was the timing. Since it was at 9:45, and the park opened at 9, I had to move very quickly to do a ride or two at rope drop before I had to be at the Rose & Crown. I was able to do TT as single rider and then FEA, but I really had to rush to England after that!