Yo Darren!
We have a boatload of song tutorials (in all skill levels) that should help you get accustomed to playing tunes. And there are many improvising lessons that will help you get started with jamming as well. As far as feedback you’d always be welcome to post in the forum and we’ll do our best to help you along the way.
How long have you been playing? You say you’re at an advanced level with theory, what’s your background?
Take care man!
Sean
PS. IG does offer that 3-day money back guarantee too, so you can always try it out with no risk.