I had a pair of Sennheisers 333d. In less than a year the connection to the mic became loose and staticky causing me to have to adjust it often. I'm also not a big fan of their driver software because it doesn't indicate very well which one of the 3 set up files you need to run.
So I switched to my Logitech g930 headset. I liked it a lot better than my Sennheisers but I guess some wires on the right side became loose or worn down causing sound to only work on one side. Good thing Logitech offers a 3 year replacement warranty, it's a bitch to go through the customer care but maybe some time this month they will finally ship out my replacement headset.