TACX trainer lacks any sensible set up instructions. I bought £700 trainer. The hardware set up instructions aren't really awful, but are distinctly lacking (don't tell you to remove plastic that will get hot; doesn't tell you what tools to use to change spindle; etc. Worse than most flat packs!) But that's where it ends. Nothing to say what software to use; to calibrate it first; appalling website log on; incredibly slow speed of download of app (no, it's not my wifi/PC); etc. Help lacking. Online support inadequate. Totally consistent with Google buying Garmin and Garmin buying TACX : they seem to have lost sight of the customer in all of this.