We traded in our 2010 Limited for a SR5 Premium with 3rd row. We love it and I have nothing but good things to say about it. Granted we went in knowing this isn't a vehicle that compares to having an XL SUV that has captains chairs plus a bench row (that will eventually come for us much later). It's just my wife, 2 year old daughter, and myself. We have a lot of family come to visit us and it gets old having to take 2 cars just to go anywhere, adding to the fact we plan on spawning another offspring soon it made perfect sense to get a vehicle with a 3rd row.
Enter our 2015 SR5 Premium. I've seen a lot of people on here say they never use it, which makes me wonder why they even purchased it in the first place. We have used it multiple times at this point, to an extent I feel justified in the purchase/trade.
Is it slightly cramped? Yes.
Minimal storage with the seats up? Yes, but most vehicles with a similar set up are as well.
Ease of access? For the most part, it's very apparent side steps are needed. I opted for no side steps because I want to get a set of Bud Built Bump out sliders ASAP. Regardless, something is needed.
Everyone shoves there kid back there apparently in this post. First time we ever used it, I had my wife drive and I sat back there. I'm 5'11 and 225 pounds, pretty wide shoulders from weight lifting and humping around a bunch of gear on my back over the years. I was nervous I would hit my head on any bump my wife hit when sitting back there. To my pleasant surprise that never happened, even with my the wife's not so subtle driving skills. Leg room was fine, this was a 3 hour round trip drive. I was comfortable the entire time.
I look forward to next summer taking friends camping in it. By then should have a roof rack and possibly a trailer, which will offset my storage. I'd rather bring more people in my cabin then a bunch of stuff, just a personal philosophy I have.
Really my only complaint is finding a weather matt for the rear that I like has been a PITA as well as the stance from springs. When I have people sitting in the 3rd row I notice the stance levels out, unloaded I feel like I'm "falling forward" if the makes sense.
Over all I love it.