klaasvakie I.M.O the major downside to Yousician is that it doesn't train your memory at all, I find my song retention is absolute rubbish.
I think this is weird - I mean you've learnt the song, the muscle memory is there if your fingers can follow in real time?
Perhaps it depends on how you are used to learning - I'm used to tab only. Now though, I try to combine tab w/ears - The tab gives me a mental picture of the notes, I use that to figure out where my fingers need to be and my ears to get the rhythm/feel. When the tune is internalized (E.g. I can hum the tune at will), then I can put away the crutches and jam to drum loops until I'm happy.
One huge caveat...If I don't maintain what I've learnt, it'll likely be forgotten. There's much riffage I've forgotten because I didn't maintain it after learning. It's not uncommon - my mate teaches at COPA, he can play the paint off a classical - but maintaining his repertoire of classical pieces to performance level is around 3hr/day...before he learns anything new!
In the last band, I put in around 4+hrs/week (minimum) just re-playing our 35m set. And then there'd be a 2hr practice 1/week too.
I think we underestimate how long it takes to internalize something and how much effort is needed to maintain our internal jukebox? I like to work on something for around a month, I don't spend a lot of time per session, maybe 5-15m each time. Occasionally I might get into a jam/technique and I'll go longer. But if I can put in one or two short sessions in a day, I'm really happy.