I've received my Elite Qubo Fluid on Saturday. The equipment is just as I thought: very quiet (the one thing I hear is the sound of my drivetrain, not the trainer), smooth ride. As a premium Strava subscriber I get 2 month free on Zwift. I like it for now. I did a 30 minutes ride on Saturday (rain all day long). It felt short. I did a 45 minutes FTP test on Sunday, felt short again (I wanted a point of reference to track my progress). I feel that 90 minutes ride should be no problem.
Zwift is a lot of fun, the 3D environment is just as good as a real video to me and it's so nice to see "real" virtual people.
The Trainer has no piece of electronics at all (pure fluid roller). I stay on the small ring and get enough range there. I pushed over 600W during the FTP test and can roll easy at 60W for warm up, always in a cadence that is appropriate. I don't need more then that, and if I ever do, I'll just get on the big chainring. That's why I have picked this trainer, you control the resistance through the speed (cadence and gear).
I am probably missing something so be patient with me but I thought Zwift was supposed to be used with so called "smart" trainers to get that close to reality riding feeling (resistance increasing when riding "uphill", decreasing on "downhill" and "drafting" behind other riders. I can't see how your setup could deliver that.
Also, and I am not trying to get into a discussion of "mine is bigger, no way yours so big!", but FTP of 600W seems to be a bit excessive. If I'm not confused Jens Voigt used to have one of 450W. Now, that might have been a full one hour FTP (I am not sure what testing method did you use but most people don't subscribe to the full 60 mins. of torture so I will work with an assumption it was 20 mins.) but even if that was the case and Jens' 20 to 60 minutes FTP drop-off was as high as 50W (unlikely), it would put his 20 min FTP at 500W. In other words yours seems to be 20% better than the former hour record holder's. To me it looks like your testing method might be flawed in a way that would seriously skew your Zwift experience. And don't get me wrong. I don't use Zwift and don't care about any leaderboards there either. Of course it is well possible that those 600W was just a typo and I've wasted my coffee break here.
If SG can push a FTP of 600W he should not be here but on the SKY team - That would be better than Froome and properly close to a world record
I think that SG mean that he can peak at 600 watts witch I also can but only for less than a minute. My FTP value is a tad past 200 watts and that, based on the BKOOL rating, places me in the highest level of amateurs. As long as your trainer software don't know what resistance you have on your trainer, the numbers you get will always be vague at its best. Speed, HR and cadence are not enough to calculate accurate power numbers if the calculator don't now the power curve of your trainer. I guess that the power curve of the trainer SG have, is known by SWIFT and therefore able to calculate the power output. A smart trainer I would say is a tad more accurate but also a tad more expensive.
Here is a good article about FTP values between amateurs an PRO's:
https://decaironman-training.com/2013/12/09/powerlevels-ftp-pros-vs-humans/comment-page-1/Karsten