I have some experience with them. They are extremely fun in pretty much any quise, but I like the A6 kit you can get quite a bit. You won't be firing it shoulder mounted any time soon, but its pretty handy and makes you feel like you are wasting less ammo with the ability to go prone.
It's very simple to change the headspacing and alter your timing with one should you change ammo at any time, which you will do several times trying to find a surplus .308 that it likes to eat. I don't recall having any real trouble in particular with either the cloth or metal links, either works well. Overall, they are a lot of fun. Especially with a crank fire adapter....mmmm... Oh yeah, they make a machined scope mount for them that I always thought would be fun with a red dot on it.
If you have the funds to consider such things, I'd highly reccomend picking one up. At any rate they will probably get a lot harder to get ahold of in the future. And hey, I'm pretty sure its the ultimate EBR. You'll feel like a big man with a 2-foot tall pile of brass at your side...
-Spooky
ps- After just re-reading your post instead of paying good enough attention the first time around, I noticed you might be asking what the quality of a particular maker was. I actually have no clue what the ones they are selling are like, just the 1919 in general. I apologize if all of the above was useless to you.