Detectors like the PogoGPS are pretty crap really - no better than a tomtom with speed camera locations or a decent smartphone app.
Anything that claims to be able to detect laser is useless: by the time it's detected the laser, it's already got you, so there's really no point in having them.
As with anything like this, it depends how much you're prepared to spend. Personally, I've got a valentine one radar detector for Gatsos (had it hardwired into my old car but haven't bothered in my latest cars as I switch between cars too much) and I use a tomtom with live speed camera locations.
The only way to reliably combat camera vans and police laser traps is by installing a laser jammer, which is hardwired into your car. Installation cost is dependant on the device, but you're normally looking at £100-£150, and that's on top of the £500+ purchase cost for a decent device such as the Blinder M57.
The best jammers will double up as parking sensors or garage door openers as the use of jammers is illegal in the UK, and you will get into VERY serious trouble for it. A guy was caught a while back and he claimed they were garage door openers, the police inspected his house and found he didn't have an electric garage door, so he was charged with PCOJ.
Basically, unless you habitually drive at very high speeds or you're prepared to outrun police, jammers are not really worth it in this country. For the vast majority of drivers, an updated Tomtom / smartphone will be fine, and if you drive on a lot of motorways with gantree gatsos then a valentine one might be a decent investment as well, but that's all I'd bother with.
![[TW]Fox](/data/man-of-honor/2009.png){kind=avatar}