i had qobuz studio/hi-res for 2 months -- one month free trial beta and one month paid.
i liked the service and it worked flawlessly with roon. unfortunately, i had to end my subscription due to the sparse library in the titles i traffic in... indie, americana, nashville 2.0, etc. many, many well know artists were missing and those that we there had only a few albums available.
i understand qobuz is still filling out its library so i will check back at a later time. in the interim, i will reboot on tidal -- the much larger library wins.
also, imo, there are nowhere near enough hi-res titles on qobuz to justify another streaming service just for that feature... ymmv.