[Kymmy]

The simple rule is that the longer the coax and the more splitters the more attenuation on the signal, which in turn depends on your original figures as to if it effects your connection. A low signal won't effect your broadband speed like for example ADSL it's more than likely to be a plateau effect and when the signal lowers enough you'll go from have a 30Mb connection to not having any connection. Sepiroth though can explain it a lot better than I ever could..

I presume though you had the hub installed where you wanted it so why change? If the Belkin works then it's an immediate measure which gives you the same wifi that you're already used to. Hopefully they'll eventually get the SH wifi running properly but that's a whole other thread,