I installed a new phone system at my office and wanted some cordless sets so we can find each other when we are about. I went for a Snom M400 so I could use a repeater if the signal fell off. The quality of the calls is exceptional and the range is also impressive, without the repeater.
The set up was a bit complicated and a lot of Snom support is in German, but it is really simple. You do need an extension number per handset so I have installed a small FreePBX switch, but Voipfone extensions are not expensive.
I am over the moon with Snom and am pleased with the results.