Whats it going to be used for? Just punching paper? If so, it'll do. I wouldn't put it in a role such as home defense or any other scenario where your life depends on your rifle. How much was the Del-ton going for? What configuration?
With all that said, Del-ton doesn't have the greatest rep in the professional sector for making a quality rifle; quality rifles being brands like Colt Noveske, LMT, etc.
Check out this comparison list:
As you can see they aren't even listed. The person that compiled this list (from m4carbine.net) doesn't believe they have any business on the list as their quality is below even the lowest on the list. If a company makes a product with even less features than the lowest on the list, their column would essentially be empty
Again, if you're only punching paper, fine. Anything more serious and I'd upgrade. Unless you're getting a smokin' deal on the del-ton a couple hundred bucks will get you a much more reliable rifle, IMO. YMMV