We have just changed from a Bear Lake 6 tent + trailer to a TT.
When we had the BL and a trailer the car was packed to the brim, even though the trailer was double height AND had a roofbox fitted!! When we went away a few weeks ago, we had EVERYTHING in the TT except clothes which were in the boot of the car - it was SOOOO much easier and more comforatble to have room to move in the car... can't wait for next summer now!!!
It was also up within about 15 minutes of arriving on site, which was heaps better than with a tent..
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.