Pros: -Solid Construction
-Very Adjustable
-Low Profile (Great for apartment with 8ft ceilings)
-Price (lower that anything else I have seen
-Quick release makes this mount the best for people using it at home

Cons: -none so far, just make sure you find the center of gravity on the projector to reduce any vibration from the fan.
-I will wait to see what happens in a month or so (ie. if it stays in place or not)

Other Thoughts: A lot of people were complaining about how hard it was to adjust but frankly I want something that is going to hold my nice HD projector to be as solid as can be. Just make sure you have a 1/2 inch wrench with you and you are good to go.

Pros: Many options on adjusting. Very durable and well made

Cons: User Guide is poor. I probably broke it down and put it back together 3 times trying to get it fully installed. Make sure you line up adjustment to swing the projector up and down facing the screen first. Also, get 2 hex screwdrivers to make it easier to loosen/tighten when in position.

Pros: Universal mount fit perfectly on my projector.

Cons: Adjustment screws are "wonky" and hard to adjust.

Pros: Easy To Setup and Install. Had the projector up and running in less then an hour.

Cons: Non that I can think of.

Pros: Inexpensive. Lots of metal. I don't think there's a projector this won't fit.

Cons: Too much distance between projector and ceiling. Very, very difficult to adjust - between trying to loosen/tighten allen bolts, balance the projector, and do all of this with two hands, bad language and questioning the wisdom of the engineers who came up with this product may ensue. It's possible (as it was in my case) that a good (optimal may be out of the question in many cases) solution blocks access to the small screws holding the mounting ring to the rest of the unit. Really, getting it installed was tough - the most difficult of any projector mount I've used to date.

Other Thoughts: Newegg remains the best place to buy anything related to technology. Always great service and low prices. Seriously!

Pros: Very sturdy. Bolts right up to my HD20 projector. Great price compared to Best Buy and other local distributors rip off prices.

Cons: Adjustment can be a bit clunky, but once it's set, you forget it. Not enough to take an egg off.

Pros: Works, Cheap, Doesn't suck, am very pleased (bought in 2006 am still happy)

Cons: As in other reviews, the ability to have multiple hardware configs makes picking the parts a little confusing.... but it's cheap, so who cares? not me.

Other Thoughts: If you find the center of the wight distro on your projector, you will not have any vibration when you tighten this down.
If your weight distro is off (not balanced), it will vibrate, that simple.

Pros: It seems to be made very well. It's only rated for 30lbs but i'm sure it can hold more if you bolt it into a strudy ceiling. there's tons of adjustments.

Cons: the adjusting bolts were on extremely tight, once you finally get them loose, just make sure you don't tighten them way too far.

Other Thoughts: Overall i'm really happy with it, it's strong, it's works, and it's highly adjustable.

Pros: Cheap.
Sturdy construction (thick, solid metal, with good sized bolts)
The quick release is very handy.
Lots of adjustments.

Cons: Yes, like everyone else has said, the bolts are tightened VERY tightly. All that means is that you need 2 wrenches to take it apart enough to use. That's it. For the price (including a little elbow grease), you can't beat it.

Other Thoughts: I have a small 720p optoma projector. It's so small, I had to get creative and could only use 3 of the 4 mounting arms (with no negative repercussions). That said, you really could mount practically any sized pj with this.

Pros: This is a very sturdy mount. This is NOT made from aluminum and does not bend easily. Very adjustable. There is also an "easy release" so you do not have to loosen the screws on the projector itself to take it down from the ceiling.

Cons: No telescoping option, but works perfect for my setup.

Other Thoughts: I have seen a lot of mounts for similar prices that I wouldn't trust to hang a $500 projector. This one is holding up my HD20 like a pro.