I purchased the Sander at the 2019 National Narrow Gauge Convention and waited for delivery from Canada. It arrived in short order and I started to play with it, and then use it for model building. It is nothing short of fantastic, and I have used it to true up all kinds of materials - plastic, brass, white metal, aluminum and even wood. Mr Collins offered a special on the Repeater for attendees of one the early National Narrow Gauge Zoom meets, and I ordered it during the show! It arrived just in time to be used in the construction of a SP wood portable stock loading chute. The sander with repeater made short work of turning out the boards and posts needed with the proper angles on the ends and where needed, to uniform lengths.
It is now earning it's keep by sanding posts and beams to length with a myriad of different angles on the ends that will be part of a round house.
I almost did not buy the sander as I had only a few structures left to build for my railroad, and I thought that is a lot of money for only a few more construction projects. I have no regrets for pulling out my wallet at the convention and later on during the NNG Zoom meet. This is a must have tool for builders!