I notice no slowdown between wired and wireless for internet. Moving large files at 11mbps instead of 100mbps is a little slow, but its rare I move large files around my home network.
The only drawback I have found with wireless is that if there is a 2.4ghz phone near the router or computer your connection will drop when the phone is in use. I tried all 11 channels on the SMC and channes 8 and 11 seem to be the ones with the least interference from the phone.
The only other thing that bugs me is that if I move my laptop to the back of the house I get a large drop in signal strength. I am not to worried about it though because its not the routers fault, it has more to do with the Microwave, Bathroom(all that ceramic tile),and 10 walls in the middle. I am going to recable where I have the router placed to minimize the obstructions to 2 walls and see if that boosts the signal in the back of the house.
My goal is to be able to use the wireless to work from my hammock out back. If anyone has any ideas on boosting the signal with this specific router post them here!
EtOH