I briefly had (and sold) a Desert Eagle .50 AE last year.
It was a great gun, probably the highest quality piece of ordinance I've ever had in my hot little hands. Very well made, it was probably also the most accurate pistol I've owned.
Whether it functions is entirely up to you. It requires shooter involvement on a higher level. First, there's caliber - .50 is supposedly a little more reliable than the rimmed calibers, which makes sense because it was designed for an automatic. Also, you may have to try several types of ammo to find the one it likes. You have to keep it very, very clean as the gas system needs babying. But most importantly, you have to learn how to shoot it - it's not like regular guns in that it is heavily dependent on your arms, wrists and upper body providing an immoveable object against the rearward force of the recoiling slide. It's limpwristing on a whole new level, as your entire upper body must be aggressively stiff, sort of putting your weight into it, as in balancing forward.
Once you learn this trick your DE will not jam.
I sold mine because I found a .44 mag Dan Wesson sixgun that was just way simpler to deal with - easier ammo availabilty, cheaper bullets, and really all the power I would ever need. I could fire it much, much faster and more accurately than the DE since the DE's trigger was heavy. In fact, the gun itself was too heavy to ever carry around, so it sat in my safe and collected dust.
Hope this helps.
