We had the 23XM for about 18 months.
It was a nice size, and VERY maneuverable, there wasn't anyplace that we wanted to go, that we couldn't get into.
That being said, we just traded up to the 26XD, for the following reasons:
The slide came out the back of the 23XM, so we couldn't carry our bikes.
We travel with dogs, so the extra room in the 26 was welcome.
The 26XD is only 36" inches longer, but seems much bigger due to the large slides.
The 2016 models have the Ford 6 speed Transmission... quieter and better mileage.
I wanted a couch... sometimes the dogs let me use it!
We really love the 26XD, and it gets over 11 MPG... so all is good. Both the 23 and the 26 are small enough so we don't have to have a toad, and that saves us a bunch of money!
Let me know if you need any more information... It's amazing how much extra stuff you can get the dealer to throw in, before you sign!
Good luck and happy camping!
2016 Redhawk 26XD
Me, Dear Wife,
2 Bluetick Hounds
1 Newfoundland / Black Lab Mix
1 Cairn Terrier