I purchased the SL167 last February. I am a first timer RVer. I have taken it out 4 times and love it. The dealer so far has been real good to work with. The only things so far that I have found on the negative side are:
Single axil, but had to do this because of my tow vehicle.
Toilet a little cramped. By myself, I leave door open so not as cramped.
I have 2 grey water tanks. I wish there was only one. I haven't quiet gotten the wye connection down yet. There is always an issue.
I am taking it in for service this week, so I will see if there are anymore issues.
Have fun!