I have the 17mm LX. It's has a dual 2" and 1.25" fitting so you dont need to worry about adapters etc.
Construction wise, they are very solid with nice rubber grips and twist up eyecups. Eye relief is good (I wear glasses).
Visually, they offer a good FOV (not TVs, but at 1/3 of the price, I am not complaining). The views are very sharp on my 8" SCT at f/10, even at the edges.
The only thing I notice is that they are not as "contrasty" as my LVs, but FOV overcomes that.
I havent tried in on a fast dob, so cant comment on that.
Happy to post mine out to you for you to have a try, just pm me if you want to take up the offer.
Bo