Hi,
I had a Desert Eagle .44 for several years. I had a lot of trouble with jams. It was worse if I didn't hold it very tightly, but jammed regardless. It would jam 1 to 2 times per 8 shot clip. It also was pretty wild on ejection. Many times I had empties going through my hair, hitting me in the forehead, and even hitting my safety glasses.
I sent it back to Desert Eagle for repairs. The first time, they replaced the springs and ejector and sent it back. It was just as bad. I kept it and shot it a bit more, but continued to be unhappy.
Finally, I sent it back to them a 2nd time. That time they decided that the problem was due to too high a slide velocity so they reduced the gas piston by 0.005. That definitely did wonders for the problem. It still would jam occasionally, but not routinely.
The pistol demonstrated excellent accuracy. It would easily shoot 1" or less on the 25 yd range with a scope on it. I never did hard core accuracy shooting at 100yds to check groups there, but informal shooting suggested 3-4" would have been easily achieved.
I eventually traded it away for something else. Between the continued intermittent jamming and it's big and bulky esthetics, it just never made it into my keepers list.