The mandolin alone would be worth the $9.99 despite numerous issues with pitch, sustain and note volume spikes and dips. But twice the whole Guitars Vol 2 library conked out completely—i.e. it's not available in MuseScore Studio's Mixer Sound menu. So for weeks I haven't been able to work on scores that use the mandolin and, obviously, neither can I export audio from them. I sent a support request thru MuseHub's official support mechanism 9 days ago. I've only received a generic reply containing links that suggest I attempt to get help with MuseHub problems by posting inquiries on .org and Github. Well THAT's support! No human replies to my follow up emails to support@musehub.org I see LOTS of people on the MuseHub forum having unresolved issues with MuseHub downloads.. And for some yet unanswered reason, I can't post to that forum—it seems I get logged out everytime there's a handoff to Zendesk. I expected more from one of the money making branches of Muse Group. MuseHub, if you're listening, please give me reason to trust MuseHub. Glad to update this review if MuseScore comes forth with a solution. No one from .org or Github has offered any advice. Mandolin tone: 9/10 Mandolin playback: 6/10 MuseHub support: 1/10 Full story here: https://github.com/orgs/musescore/discussions/25963