They're a high end company selling at high prices. I own a HALO and another auto from them. The auto springs are not what I would bet my life on, in the midst of pocket lint, dirt and grit. (Thumb studs are at least as fast, IMHO).
Locks are good. Steel is excellent. Designs range from practical to "ooh, ahh", but practically worthless. Resale price holds well...they seem to do *lots* of prototype and limited runs.
Staff at SHOT was a bit short of plain stupid.
Summary opinion: Great for collector value. Some are great for daily carry (unless you wish to spend less for a Sebenza and get more).
Hilton...your opinion requested.