salus st620 programmable Thermostat

2 buttons ("enter" and "back") plus a touch ring for selecting values, so it's not difficult to learn how to use it. You can find out more on the manufacturer's site at http://www.salus-tech.com/products/thermostat/programmable-room-thermostat/_c1_22_sseries-programmable-thermostat/ where you can download the manual and watch a video about the unit. What the manufacturer's site doesn't tell you is that it fits onto as standard UK single back box (like you'd find behind any switch or single socket). The price is pretty good for what it does - you could pay a lot more for alternatives that are, to my mind, a lot less appealing.

Complicated to set up and not very flexible. There is no easy way to set daytime, once, permanently on. You would have to reprogram all the settings. A choice of programs would have been better.

Works well with underfloor heating system, it has indicator when hot water requested.

Easy to fit and works very well.Despite some other reviews I found the controls to be straightforward.

Note that this is the wired version. Works well, allows programming of up to six on/off cycles over a combination of days. Easy to use.

Need to manually set the time as it will always set to European time zone and be an hour out if you enable the radio control. Dim display and a pain to set up, but does the job when you finally get there. I'm sure there are better ones out there, this will see us through this winter.

It was the right type but was useless for the purpose I required it for. I returned it for a refund.

If you want to know why Nest is such a phenomena, buy one of these.