considering getting directtv2pc

Trying to consider cost, setup and quality.

Would like to know if wireless is worth trying.  Have read a few things that comment wireless not that great.

If someone is using the Ethernet adapter, are you satisfied?

And am I to understand my set up would be this way.

Have HDDVR in living room.  Have desktop computer with a modem/router.

I would only need to purchase one Ethernet adapter to attach to my HDDVR in living room to make the connection?

Any advise appreciated.