I just got the 3 in 1 yesterday. Have yet to install it in my van, but so far I think it's love.
I will admit to being slightly snobby about carseats. All of our seats thus far have been Britax, Chicco and Recaro.
This is the first Graco I've purchased for our personal vehicles. We do have a Nextfit, but I don't love the high sides for loading/unloading the smaller kids and it's so bulky. Also I've always had some issues tightening the harness rearfacing.
The Extend2fit 3-in-1 has a very smooth harness pull uninstalled. I also find it easier to adjust the headrest/harness height than our Nextfit. We do have one of the first Nextfits from Jan 2013 though.
I'll install in a bit and try to get some pics. The cover is nice, and everything seems easy to adjust. I think baby girl will love it and fit for years to come. My personal goal is to keep her rear-facing to 3 or 3.5 and we will have no problems at all reaching that.
I think Graco has really stepped up their game on this one. I purchased online with the 20% off friends and family coupon on Monday and it arrived yesterday. I'd read reviews, but really wasn't sure if I'd like it in person. Our BRU doesn't carry the E2f in store at all yet.
It should keep even the highest percentile children rear-facing to a safe age and then fit for awhile forward facing. Nice features for sure. I'll post about installation later.