i have had mine for 3 years now. us it a LOT. replaced the cutters with Lyman brand. all good there.
it has been flawless in it's operation. i use it for all calibers (.223, 6BR, and .308) for chamfering and deburring.. However, i only trim the .308 cases with it. it's a bit busy to change calibers for trimming, and not usable for trimming 6BR cases (who trims them anyway?) because the case is too short to hold on to.. i could trim the .223 cases with it, but i don't like changing the trim setup off the .308 cases (too lazy), so when i need to trim .223, i use a Forester manual trimmer.
within these limits, it is a very good tool. my shooting buddy has one as well, and his has performed as advertised. he only shoots .308 though