I’d strongly suggest you give it a try - there are some issues with the current beta version (IMO) - so might be best to use the slightly older non beta.
1 - connection works fine, best use the ID login
2 - I’ve only used it within the same country - but I don’t think you’ll have to much trouble with the ping times as long as you have a reasonably stable connection with reasonable (?) speed (up and down). VST connect isn’t ‘real time’ and it adds a buffer delay to take care of the latency. Sounds complex but it’s invisible behind the scenes
3 - yes, you record a compressed version - perfect decent quality and you can set the amount of compression. With the PRO version it also records the full (HD) quality versions locally on the remote end. Then, after the session, you can transfer the uncompressed ones…at this point this doesn’t work well for me, so you might find it easier to send them via another method - depends on how tech-savvy the performer is.
I don’t know how techie you are but you definitely need to be using the Control Room in cubase/nuendo (it’s easy !) - and it takes a few minutes to work out the slightly odd routing but bear with it.
It’s by no means perfect and has quite a few bugs but you can get decent results.
The documentation is pretty vague and out of date but read the manual and have a look here: https://connectvst.com/
post back here with your experience - I’m interested in how others are using it - plus the mods here are very helpful (compare to the rest of the steinberg forum !)