I agree Reliable is a crapshoot, I knew they had a spotty rep before I clicked the Buy button. In my case I got lucky, or maybe I was one of the vast majority who got what was advertised at a good price. At any rate I got what was advertised, no hidden flaws, adequately (barely) boxed. They were a little slow to ship, apparently they only ship on the 2nd Tuesday after a new moon, or something like that. 5" Kurts are scarce, and are higher than the 4" model, but it is the perfect size for my 8x36 table. I got a nice Kurt for the price of a clone. Cleaned up and painted (Kurt blue) it looks and works very well.
OTOH I have bought from Enco for years and never been unhappy. But my experience with that vise was disappointing. The site clearly showed a Kurt clone, the price was good ($110 IIRC) but not fantastic. What I got was a $50 vise that looked nothing like the photo, and was definitely not an angle-lock design. When I called them to tell them I got the wrong vise, they just said "The product may not look like the photos". So why then show a photo at all? Why would you buy something on the internet if you cannot trust the photo one the web page? I had them go look at other products, and they had no 4" Kurt clone under $200. So I sent it back, and they paid the freight.
The 4" Kurt clone vise is probably the most popular milling vise in their market, and they had nothing competitive? I just found that hard to believe.
Enco is still my first choice, and I have a Hot Deals catalog on my desk marked up for an order to be placed this week.