Burglar alarms and keyholding: ADT vs Verisure vs others?

[DulwichLondoner]

I am interested in recommendations for a burglar alarm system (preferably wireless) + keyholding/alarm response service. We live in a flat and have the alarm mainly as deterrent: access to our flat is quite easy via two balconies, and installing proper security doors on the balconies would be very expensive. I'm not really interested in non-monitored systems.

We live in SE London, zone 2. We currently have a wireless alarm with ADT, and a keyholding and alarm response contract with Banham CMS keyholding. The keyholding company sends someone on a motorcycle to inspect the property if the alarm goes off, plus of course they'd open the door for us if we ever lost the keys / got mugged etc.

We currently pay ca. ?27 per month for ADT and about ?250 per year for the keyholding.

When we went with ADT about 3 years ago, I remember Banham was way more expensive.

I have heard of people with Verisure ( www.verisure.co.uk ) ; the system seems more advanced, with CCTV and guard response, so it could probably replace the ADT + keyholding combination.

Has anyone heard of Verisure? I haven't asked for a detailed quote yet. Or maybe other alternatives? Or should I maybe just stick to ADT?

Thanks.