I ordered my Full Spectrum Laser last Monday, and it arrived 9 days later, shipped from Las Vegas to PA.
SUPPORT - I called once with a sales question, and once with a tech question before purchasing. Both times someone answered the phone within 2-5 rings, and helped me immediately (No press #1 for this, press #2 for that). I had emailed a sales rep with a question via their online web form, and received an answer 3 days later, not great, but at least they responded. I used their online chat for two other questions, and received responses fairly quickly (1-2 minutes).
I know there is a lot of support criticism out there, but I think they have really cleaned up their act in the last couple years. The majority of complaints I saw were early 2014 and prior. So far, support seems top notch.
SETUP - Before arrival, I had added a new 30AMP circuit for the laser, I installed a 4" dryer vent and exhaust fan, had a water bucket ready, and hooked up my air compressor. Once the laser arrived it took less than two hours to hook everything up and test the laser, including running 5 minutes away to get a larger air hose than the one I had previously purchased (need 1/2" id). The laser was still aligned after shipping, so I could begin engraving. First test came out great.
DOCUMENTATION - They give the wrong URL in their package insert as to where the manual is for download. I messaged support and had a reply in one minute as to the correct location, but they should update their package insert. The documentation is very detailed for setup, but it appeared at first that there was nothing on using the laser except "run the laser". It was not until the next day that I found that there is also a manual for RetinaEngrave that explains running the laser in detail. I wish they would have mentioned in the package insert that there are two manuals to download. So, the package insert is bad, but the documentation is good once you find it.
QUALITY - I am happy with the quality of my first engraving. I have CorelDraw files that I engraved and cut with a 45W Epilog Helix at a local college two years ago, and I will be duplicating some of this stuff to do a comparison of the Full Spectrum to the Epilog.