How far from the wall does it need to sit?

It is designed to sit on a cabinet just below the wall, roughly a foot or so away, to fill a screen of around 90 to 120 inches. The exact distance depends on the screen size you want.

Does it have zoom or lens shift?

No. The LSP7T has no optical zoom or lens shift, so you position the image by moving the projector itself. That makes a level cabinet and careful measuring important.

Is it bright enough for a room with windows?

Its laser source is rated around 2,200 ISO lumens, which handles dim rooms and some ambient light. For daytime viewing with bright windows, a light-rejecting screen helps.

You get the projector, a power cable and a remote. A screen, stand or cabinet is not included, and Samsung sells those separately.

How does it compare with the triple-laser Premiere models?

The LSP7T uses a single-color laser, so colors and black levels are a step below the triple-laser 8K and 9-series Premiere models. It costs less and is simpler to set up.