I love my MP5 clone. I'm right handed. But there is something to be said about the classic. No issues at all with the after market KCI mags, I have 7 of them and all run flawlessly. It runs self defense ammo and suppressed very nicely. I don't have any lefty friends that have tried it to say if they like it. I have the PTR version which I give my seal of approval and comes a little modernized with MLOK holes and a top rail. Lots of reviews give it the thumbs up.

They are expensive, heavy, and like the 1911, iconic and I feel a must have. If taken care of very reliable.