I have solved all of my problems locally, with armorer/gunsmith support, or fixing it myself, except for one phone call to HK regarding a missing lock washer in a new Benelli M1 Super 90. Moreover, that was long ago, and may not be relevant now. So, based on what I have seen and heard, well, what other company not only has its own forum, but the owner himself answers questions himself on the forum, will come to the company phone in person, and has even posted his mobile phone number in the forum on multiple occasions? Seecamp, of course.
My Seecamp LWS-32 has given me no drama, but the man who stands behind it is same one who laid hands on it during production and testing, and is THE boss. Can it get any better than that?
Edited to add: Well, I did have a Knight Armament SR-15 go back for a warranty fix, but the dealer handled it, so I did not deal with CS directly. The dealer actually contacted me about what amounted to a recall of one run of rifles.