I've used the Texecom and the Agility kits (both have their own ups and downs). What I would say is that where the Risco is more "fiddly" to set up, their tech support (Roy in particular) is fantastic so you're never far away from someone who knows what they're on about! One dowside (depending on your company servicing/fault finding methods) is that as far as I'm aware when I last fitted one (over a year ago) it doesn't have remote service or UL/DL feature on it. I know it's not on the list, but HKC is who I'd go with for a wireless intruder system. They do a 1070 panel which can have 10 wired zones, wired keypad, wired bell etc or can be completely wireless. They also do a smaller all-in-one panel which is great too just a bit large to have in a hallway for example.