Just got DIR-655 it doesn't seem to b any faster than the Bell wireless G adapter. Don't kno. Might take it back to BB. 
Hi zeke_911,
You might as well take it back. It isn't going to improve the speed of the Internet. It would only improve the Home Network Speed as long as your Adapters as capable of "N" speed locally.
In other words, if you switched out your "G" speed adapters for "N" speed adapters, you will only notice a difference in transferring files between computers and storage devices, not between one computer and the Internet.