I tried a Lemond recently with a Velobike adapter. It is very loud. But, they are pretty easy to find near me and the going rate is about $200-$250, which is a lot less than a Kickr.
I've used a KKRM but with the normal freewheel. It's fine, but wheel slippage has been an issue for me. (I hear trainer tires, knurling the drum or the heavier flywheel can help with that.) There is no slipping on the Kickr. The manual resistance settings are nice for starts, but I found that with that, once I get the flywheel going, the power required to keep pedaling plummets. I often just plug it in and use it like a regular trainer and avoid the manual setting options.