Tonight was my first "extended" ride on my new toy, a bicycle roller. I did about 20 minutes at an unknown speed (reasonable cadence on the middle ring and mid-high rear cog). This was my second time on the roller, and I'm getting the hang of it. I can now go for five minutes at a time without needing a quick "hand out" to balance myself.
I like the roller so far, and it seems sturdy enough for my clydesdale frame. It was completely an impulse purchase, as Performance had a good price ($90), and I had just found Grandma's Christmas check while cleaning.
I'm hoping to keep at this until spring. Getting a bike computer soon will help, since my normal odometer (GPS) doesn't seem to work very well here for some reason.