I bought my Wista second hand in pretty good nick from European Cameras in Drummoyne, Sydney. I'm not sure of its provenance, I guess someone bought it outside Oz. I can only compare it to a Toyo monorail, which by nature is less user friendly in the field. It took a while to get the hang of the base tilt on the front standard, but it's been a good little camera.
Mainline are reputable and good to deal with, but their prices are usually out of my range. A RH Designs Analyser Pro for my Ilford 500 H would have cost at least 50% more than ordering direct from RH, and it's not as though there was one in stock.
Regards - Ross