Yes the vortex is a good trainer but I found it temperamental as well trying to find the sweet spot between inertia, gearing and wattage ceiling and floor. I almost chose to get a power meter as with the vortex my ftp was really high at 292 and I knew it was to high. It was actually 256 when I switched to a kickr core. Then got it back to 272 when the core died. Now on a h2 at 292. I’d recommend swapping trainers but it’s very easy for me to spend your money.
I have a stages power meter