It could depend a lot on how many neighbours have wireless setups, how close they are to you, and what channels they happen to use.
Wireless will almost always be slower and less reliable than a cable, but will often be quite adequate for most uses.
I get about 50Mpbs speedtest speeds on one wireless laptop against 70Mbps wired to my desktop.
Moved (with trepidation turned relief) to BT Infinity 2 for upload speed. Happy BE user for several years.