I've had my SVD for 4 months now. Granted, it was only my daily user for 2 of those months. Nowadays, I use it at home, occasionally, and use it as a backup. It's still flawless. I have not had any problems with the buttons, but I could see how they would be the first to fail on this device. The SVD was only useable for me in its 18350 configuration. And even then, it was bigger than a mech in 18650 mod. In 18650 mode, this thing was HUGE. Unless I'm at a Halloween party as Luke Skywalker, I would be hard pressed to carry it in lightsaber mode like that.
I haven't had any experience with the Zmax, but they look promising.
I haven't had any experience with the Zmax, but they look promising.