I do 90% of my indoor work on plain jane rollers with no resistance (about 18 hours in Jan so far). About the only thing I can't do on them is big gear stomps because it's too easy to just spin up.
Looking for a better set now because the belt broke on my el cheapo minoura rollers the last time I used them. The bearings were crapping out because the rollers moved side-side when riding.
Are there some people implying they're too hard to ride?