Great for left-hand technique
And right hand. The main problems you'll have with this is endurance and accuracy. The piece progressively gets faster. You start from 104 to 112, then to 116. So that'll kinda wear you out a bit.I don't think what I'm about to say next is much of a problem, but i herd someone complaining about the synchronization with the right and left hand during runs. The left hand has a lot 3rd to 4th, and 4th to 5th finger work. Since they're the weak fingers, it may sound a little choppy and the right hand won't be in sync with the left hand. The sync shouldn't be an issue at all, but yeah, the left hand finger work is a problem because of the 3rd, 4th, and 5th finger work. So it difficult to play it without playing choppy. And then there's the 16 octave jumps on the last page which I thought was difficult to execute with accuracy. There are some other jumps through out the piece, but the ones on the last page gave me the most problems.But irrespective of that, the good news is that you can use a flood of pedal so you can cheat in difficult places! You can kinda half-ass the notes here and there and get away with it!So go for it dude! Rachmaninoff is forever!!!