Excellent car seat
Love this car seat. My daughter sat in the car seat at 8 months rear facing. It has lots of cushion, very comfy, and the fabric is soft. She usually falls asleep in the car and her head doesn't tilt forward but to the side wings. That was one of my concerns with most car seats. Highly recommend.

How does it perform in a car crash...
There are kwirks to this car seat. One, for example, is that the buckle is way up, snug in the crotch. It looks like it would probably make a boy uncomfortable. However, my 1yr old girl was buckled into this seat, rear-facing using LATCH during a ~40mph accident and is fine.

I think the result speaks for itself.

One note that someone else mentioned - if you regularly use the tensioning feature to loosen and re-tighten the belt, don't trust the clicking noise that's supposed to signify that it is snug. I very frequently found that it would click when the belt was obviously flapping around, very loose. Use your brain and *check* the tension after it clicks. Just because it clicks doesn't mean you can't cinch it down more.

I'll be replacing this seat with an Advocate CS.

Great Carseat
I am very happy with my purchase of this particular carseat and so is my son. I did my research and had asked questions on carseat forums.

Great seat, but I don't trust CS to gauge accurate tension
Overall, this is an excellent car seat and we're glad we chose it. We chose Britax because they continue to be a leader in child safety (we did considerable research). And we chose this specific model because of the superior side impact protection. However, I don't find the Click & Safe (CS) feature of this seat worth the extra money over the standard model. An overview of pros and cons as I see them:

PROS
* Superior protection/safety
* Well designed seat
* Easy installation - the directions are attached to the seat so you can't lose them and are easy to follow
* Durable fabric used
* Decent padding for child's comfort
* Strap height very easy to adjust as child grows
* Easy to buckle and unbuckle - easy in/out for the child
* The cowmooflage pattern is pretty cool (and works for both boys and girls)

CONS
* CS feature doesn't seem accurate - this is the biggest con. After buckling the child in, you pull the strap to create the right amount of tension on the 5-point harness. The CS feature is supposed to click when you have the straps tight enough. However, our seat clicks while there is still too much give (over an inch) in the shoulder straps, and is even less accurate when she's wearing a winter coat. Straps should be snug (not tight) to the body. If we were to stop when the seat clicked, the straps would be too loose. In my opinion, the CS feature is not worth the extra money.
* The straps sometimes get twisted in the harness buckle and it takes a couple minutes to straighten them out (not a big issue).
* Price is higher than a lot of competing brands, but Britax is a leader in safety.

Don't Pay Extra for the Click and Safe Feature
We've had this car seat for about 8 months now for my 16 month old daughter. Save a few bucks and buy the regular Boulevard. The Click and Safe feature does not work. I'm surprised this seat hasn't been recalled because if you actually relied on when the seat clicks to tell you when the belts are tight enough, you'd be leaving your child dangerously unsecured. The problem appears to get worse with the cold. The belts do not tighten freely now that it's winter. I have to stand up in the car and pull multiple times with all my might to get them secured listening to click after click the whole time (and no, the belts aren't twisted).

In general the seat is nice with the exception of the belts not tightening in cold weather but difficult belts are a huge pet peeve of mine so it probably bugs me more than it would others. Britax is generally good and that's really my only two complaints about the car seat. Other than that, it seems to work well which is why I'd say go with the regular Boulevard.