I have been using it and think it is great. I'm surprised it took this long for a thread to be created about it.

If your trainer isn't on their list and you can get a hold of a PowerTap for a while they can calculate its power curve for you and add it to the list of supported trainers. I borrowed a friend's PowerTap and sent Nate and Reid the data for my trainer and rollers to add the Virtual Power formulas which they added pretty quickly. I also ran a few tests while I still had the PowerTap and compared it to the Virtual Power and it was within a couple of watts of the PowerTap data. Even if it wasn't "accurate" it would still be consistent to show improvement from session to session which is the real purpose. If you want to do comparisons all the rides on the website can be viewed and you can see how much other people are riding, what their power outputs were, and can even see all the rides done for a particular workout.

They have a ton of workouts to choose from and the Sufferfest video integration is very smooth (although Local Hero won't work for some reason and they haven't added all the other ones yet). If you stop pedaling the video stops - start pedaling and it starts - so the video is always in sync with the workout.

If you aren't using Sufferfest videos there is a horizontal mode that is "always on top" so you can watch Netflix, Hulu, or any video you have on your computer and still easily see your data. I use my laptop with an HDMI out to my "big" TV which works great.

They seem to be working pretty hard at adding features and talking about some interesting ideas like having multiple users on the same screen either locally or through the internet. They are also pretty responsive to questions and comments even though this is a nights and weekends project.

I have never had it freeze during a workout and as long as my Garmin stick isn't too far away from me I don't have any dropped signals. Since everything is recorded on my Garmin anyway the lack of export isn't a problem for me and the Garmin provides a backup if anything ever did go wrong with the program.

$10.00 a month for what you get is an extraordinary deal in my mind compared to any other option out there. They will need to keep adding features to stay competative considering the progress GoldenCheetah is making on their realtime function and even Sporttracks now has a "Live" view and recording plugin.