Oh boy, I did this for the first time night before last, so my memory is FRESH
let me also say that this is just from experience, and my voicebank is nowhere near 'good' compared to other UTAUs
I'm gonna answer these in order so I don't get mixed up or repeat anything ^^
What do you wish you knew before you started?
honestly I wish I really knew what I was doing. the very first time I tried working with VCV I really just thought "oh it's like CV :D"
it's not
it's very different and semi confusing. I wish I knew how to record the first one properly, how to OTO (I still don't know how, I cheated and a very very amazing person volunteered to OTO my voicebank for me <3), how to set up OREMO and deal with error messages and whatnot, the list goes on. Let me just say that it is VERY different from CV in some aspects and you'll probably have to research a lot before you actually record it
How long did the recording process take you?
honestly mine only took about 30-45 minutes to record, however some people say it takes up to an hour or two. It all depends on your personally and your reclist
What were some of the biggest problems that rose up?
my lack of research and TOTAL lack of self confidence. My best piece of advice is to go in feeling confident, and if you load it in and it sounds terrible, just run to forums, do more research, change things around, and try again. In my experience it's just trial and error.
What's your favorite part of the process?
DEFINITLY the first time you plug it into UTAU. It's such an amazing feeling to hear your hard work singing through a computer program in a way I can't describe.
Also designing the UTAU is fun because you get to play the voice and make a design off of that. Recording's also fun, however I'm not too fond of it because my throat kinda hurts after
sorry if these answers weren't clear or all over the place haha