I was going back and forth between the Plenue D and the Shanling M2.....leaning towards the D mainly due to the massive battery life. Not that I needed 50-100hrs but it's certainly nice to charge less often. But, then I found a mint condition M2 for $130 and I jumped on it. It's pretty nice as well and I really like the control wheel (and I'm left handed.....but use it right handed). The UI is nice and seems quick and the screen looks good and can go pretty bright. All in all it's great DAP (especially for the price I got it for). If I decide to sell it or give it to one of my kids I'd probably try the Plenue D next.