One Big problem it has(but I can tweak to fix) is if you want to save your progress to come back to later and finish, there will be a half second delay in the new recording. What I do to fix it is simply delete the new recording a record again and its fixed. Other than that, This is a very fun app. I love the set up, some things about it can be a little confusing, but overall is very easy to get used to. I really like this app!
Basswiggie about Gridplay