Ours is the '14 model, but our reasons for buying would still be relevant to you I think. We got the bunkhouse specifically for the long term. Our son is 9 months now, and we anticipate making MANY memories in this trailer. He just began sleeping on the bottom bunk instead of the Pack n Play, so I'm looking for A LOT of years in this trailer. I would think for a couple kids (12 & 10) like yours, this floorplan would be ideal. The bunks are spacious, and there's just enough privacy, and the open floorplan is ideal; people aren't tripping over themselves. We entertained at a family gathering last year and we had the trailer absolutely full (just for the afternoon, they weren't all sleeping over); like 10 or 12 people IIRC and we were all comfortable hanging out in our trailer.
We're also a bit odd in that this was our first travel trailer moving up from tent camping. Most people take steps like tent>popup>hybrid>travel trailer>fifth wheel>motorhome. We decided to jump in with both feet on this one, again because we want to use it for a LONG time.
Some things to consider that may or may not matter to you: The bunks (bottom bunk especially) get a little stuffy, so fans should be considered. The bathroom is just excellent! The large shower feels more like home, and the outside door lets the kids come and go as needed without making quite as much mess and keeps the AC from taking quite as much of a hit when the door is opening up. Storage is plentiful, but some of it is so deep, we can't even see the back without a light. The "walk around" queen bed (they may have changed this in the newer models) isn't so easy to walk around. DW's feet are the perfect height of my ... ummmm ... "stuff", and they hang off the end of the bed a little, so that can be a bit uncomfortable when I have to get up in the night for the facilities. We didn't go with the White Hawk (at the time it and the Swift were the only other units with this floorplan) because we liked the build quality of the Flight, it's taller than the Hawk inside, we wanted aluminum siding, and we didn't care at all for the outside fridge. I've given the outside fridge a second thought a time or two, perhaps wishing I had something like that, but by no means do I regret our decision. I'll just use a small cooler if I want to keep drinks outside the trailer.
I would recommend you have a 3/4T truck to tow it with. I towed mine for a little over a year with my 2012 GMC Sierra 1500 (and yes, my weights were good on paper; maxed out, but within spec), and let's just say I won't be doing that again. I stepped up to a 2015 RAM 2500 6.4L Hemi in May, and I'll never look back. Totally worth it.
Any way you slice it, IMHO this is one of the best floorplans Jayco has. We've been to two (fairly large) RV shows since we bought it, and we still wouldn't trade it for anything we've seen so far.
Good luck with your decision! And welcome to the club!
2014 Jay Flight 28 BHBE
2015 RAM 2500 6.4L HEMI, Tradesman 4x4, 3.73
Blue Ox SwayPro (BXW 1503)
Upgraded from an REI internal frame backpack and a Eureka 1/2 dome tent!