Used it in several valves to replace pipe instead of redoing more than just the cracked pipe. Definitely recommend if you're wanting to avoid replacing valves due to pipe failure!
Very, very easy to use. Though good technique is recommended it's almost fool proof the first time you use it.
Provides an accurate snug fit. Depth of red aluminum body lets you know when to stop. Recommended to not ream off angle - i.e. pay attention to not wobble your hands or drill (stay steady) and don't drill at an angle.
Works as intended, I like it.