Poss one for Adam . . .
I'm helping my sister equip her house in Scotland to meet the new incoming smoke detector regs/law there (and yes it is retrospective).
A rambling layout leads to needing needing 7 smoke, 1 heat plus 1 test/locate/cancel controller.
RF linking favourite to avoid tearing the house apart and the newly upgraded Hispec RF10-PRO range fits the spec (tamperproof 10yr batt, RF interlinked) and budget nicely but never heard of them before so would welcome any views on their quality and longevity. Plenty of availability, mainly from trade outlets but I expect that to suffer as people scramble to meet the new legislation.
I had looked at a FireAngel setup but then found that for the same money as Hispec you would get an 'RF ready' detector that you would then need to pay another 30quid each to add an RF module making it not cost effective.
Kidde, Honeywell etc RF ranges all overpriced.