The Cycleops H2 is probably the best value direct drive turbo available at the moment. There are some big disounts against RRP and it delivers category leading performance. Cycleops claim a market leading noise level of 66db.
Road.cc were impressed with the quietness and power accuracy. Max power capacity and gradient are a little lower than other top offerings from Wahoo or Tacx, but are moe than adequate for the vast majority of users.
There aren’t a huge number of user reviews on-line, but they’re laregly positive. The only clear downside is that you’ll need to buy and fit your own cassette.