I got the remote wireless resistance option, it works great, but honestly, I never use it. I like that they have a modest amount of resistance built in and is more than I need. As an example, I have a compact 50/34 with an 11 tooth cog as my smallest gear. At the end of my workout last night I put it in the 50/11 combination and got up to 41 mph and a little over 600 watts (clearly that was a short lived sprint). So, they have plenty of resistance.

I might have a thousand miles on them so far, they've been great. I would probably still be afraid to ride them without my handrails because I watch TV and drift off at times.