Mine too
Recently I noticed a definite improvement of indoors 3G coverage in my home.
It has always been 1 or 2 bars but recently I have been getting full signal and when I saw this thread I know why now.
Sometimes it selects a different mast and it falls back down as I can connect to 2 being roughly equidistant from them but one differently has a much better signal.
Speeds still about the same though, but very good, better than three, orange and miles better than voda.
Now only if they extended the coverage slightly.