Is the laser light source really maintenance-free?

Panasonic rates it at about 20,000 hours with no lamp to replace. Filters still need occasional cleaning, and brightness slowly declines over that life.

How does it compare with the PT-VMZ60?

The VMZ62 is the newer unit in the same 6,500-lumen WUXGA laser line. It adds updated connectivity and firmware support; brightness and lens specs are essentially unchanged.

Does it work for movies in a dark room?

It can, but the LCD panel's 20,000:1 contrast gives greyish blacks. A home theater DLP projector with a high contrast ratio is the better pick for film.

Can I project wirelessly?

Not out of the box. You need Panasonic's optional wireless module or a streaming stick plugged into HDMI.

What inputs does it have?

HDMI, VGA, USB and Ethernet are built in. There is no HDBaseT on this model, so long runs need a separate extender.

How big an image can it throw?

With the 1.6x zoom it covers roughly 30 to 300 inches diagonally, depending on throw distance. Lens shift lets you offset the image without moving the mount.