Stuart Noble wrote:
Anyone got one of these? They seem to be a lot cheaper than the others,
and I'm wondering if there's a reason for that.

Well...
RF is hard to do right cheaply.
The more you push down the budget, down go range, resistance to
interference, ...

If you live in an isolated part of the country, probably fine.
In a built up area, it may be problematic in some cases.

This isn't to say that more expensive ones have had any more money spent
on the RF bits of course.