About the only thing you should have heard about that Elite screen is how cheap it is. Quality may be decent, but it's a long ways from a mid-level tab-tensioned electric screen, and it is not acoustically transparent.

I'm not sure what your room is like, or what you intend it to be like. The rule should be that most people should strive for a fixed frame screen. It's the least expensive solution, and almost always yields the highest quality results for the longest period of time.

If you want an acoustically transparent, motorized screen, I would recommend Seymour AV as a good option.

You will also want to look at your seating distances. Typically I believe that 6' is the minimum distance between rows of seating to allow for a walking path while seats are reclined. So, you will want to carefully measure your desired seating.

A 133" screen would be what I would recommend based upon an average seating distance of about 13' or so.

I think you are getting ahead of yourself, and possible way ahead of your budget on what you are trying to achieve. These screens aren't designed for in-ceiling, so you would need to build a soffit if you want to hide them. They are a long way from 'seamless' within a room, but if this room is designed primarily as a theater, then why go seamless? If it is not a theater, then you have to consider how much of a quality hit you intend to take if you also don't plan to properly paint the room as a theater.

I recommend that everyone try to go fixed frame in any room they are in. Not only is it the least expensive solution, but it remains the highest quality and most durable solution for the long term.

The Elite SableFrame is a very solid entry level screen. Their white screen provides a fairly neutral color balance, and works well with all projectors in any reasonable room.

The price is excellent and the build quality is certainly acceptable. I use them regularly. They are not my favorite screen, that distinction sits with Carada (fixed frame) or SeymourAV (acoustically transparent).

But, for the money, I haven't seen anything built better, and certainly their material is of decent quality.