Best thing about these balls is the bright pink thick fill, very very easy to see, no doubt about a hit with these things. Second best thing is the price, $40 for 2000!!!! Well packaged for shipping too.
Not very round, many were egg shaped (I checked a 1000 of them). I had a couple (out of a 100 shot) actually do corkscrews. More dimples/flat spots than you can believe, even after "airing" out over night. When rolled across a flat surface these things wobbled all over the place.
I was shooting these with a stock Tipmann custom 98 (except for 14" Tru-Flight barrel). I compared them with some Proball, premium 32 degree, and Brass Eagle ('bout 100 rounds each). The DH's definitely outshot the 32 degree and the Brass eagle, more accurate, and much better mark. Not counting the wild DH's, the Proballs were still a bit more accurate but did not leave quite as good of a mark.
The lack of roundness is somewhat out weighed by the visibility of the mark and the price of these balls. If you're looking for inexpensive moderate quality balls these will definitely fit the ticket. However, if you want reliably accurate balls I'd figure on spending a lot more money and leave these alone.