I went to Wal*Mart last night to replenish my stock of lost golfballs :( and I came across these as well! I usually use Top Flight XL5000 Super Soft, and I saw these on an endcap for $5.00.
I picked up a box of them, along with my box of Top Flights, since they were so cheap. I figured that if they were horrible balls, I would use them as backups for shots over water, trees, etc. I'd rather lose a 33-cent ball, than a $1.00-or-more ball!
I opened up a box of them to compare them with my Top Flights. Now, mind you I'm not very good at golf by any means, so they probably won't make any difference in my game. However, I was surprised to see how rough-feeling those were, especially compared to the Super Soft Top Flights. I was putting both kinds around my living room, and I really didn't like the feel if the Nitros. The felt a lot to me like the range balls that I normally hit!
I don't get to go out golfing much, so I'm sure you'll get a chance to test out the Nitros before I will. I look forward to hearing your report! :)