The short version - I found this sender a good and cheap alternative to getting another Virgin V+ cable box in the bedroom (which would carry a monthly charge). I needed to play a bit with the positioning of the sender/receiver but once in place we have a good reliable picture
A slightly more detailed version:
I had a 2.4GHz unit in the past and it did not work well in my Victorian house. Picture quality was poor and lots of interference from WiFi.
After reading mixed reviews on this unit (apparently works well for many but also quite poorly for others) I decided to give it a shot.
The units are quite light and feel cheaply made. Not particularly pretty either, sitting on my Hi Fi rack in the living room.
However, I bought these to send a good picture, not look sturdy and pretty...
After a few tries around different location to place both units, I got very good picture and sound through several solid, thick walls. This is dramatically better than the 2.4GHz unit I previously used. It cannot compete with my usual cable box quality but is absolutely usable. The Wireless network has no effect on the quality. My microwave (which sits pretty much between the sender and receiver) makes no difference to reception either. The only interference happens when someone walks very close to either sender or receiver- something you may want to keep in mind in a busy house.
The IR sender works perfectly with my Virgin V+ box and I have full access to all remote functionality (record, play, etc).