Quite well actually. A few small bumps, I bought the PAW mount off eBay, but the TV mount came with the 100mm x 100mm mount, the Insignia 19" had a 75mm x 75mm mount. I contacted PAW, they were great, they advised that the 75mm mounts were being phased out by the TV industry, but they still had some and shipped me a 75mm mount at no charge! They were great to do business with.
I bought some 90 degree coaxial adapters and a 1 foot coaxial cable to make the coaxial connections neat and slick. There is a 3/4" wood panel behind the wall to facilitate holding the mount, 6 - 3/4" wood screws locked the base mount to the wall, it's not moving.
The screen is 19" and the diagonal dimensions are about 22" any bigger may not fit with the angles of the adjacent walls. Picture may be a little canted, but the TV is perfectly level.
The 12 volt adapter comes in handy to mount my TST507 Tire Pressure Monitor repeater when we are towing.