I like the ones where the ladder is completely outside the footprint of the tent as opposed to underneath the tent and protected by it . Just seems to me like a waste of "tent space" up top for the ladder, and a waste of sheltered space down below. Twice I've sought refuge under a RTT during adverse weather (horizontal rain/snow awfulness) and it was kinda neat, being inside those changing room walls. But never so bad that I couldn't have made it up the stairs to go to bed.
Have you read that article that Kurt Williams wrote on these? I thought he did a great job explaining the +'s and -'s of RTT's in general, and some of the key differences. Pretty sure it's on Expo, maybe his site as well... lmk if you want help finding it.
82 fj40, 99 uzj100, 06 gx470
97 DR650, 05 525EXC, 01 XT225, 89 TW200, 09 TTR125, 07 TTR90, 07 CRF50