UPVC Door Security

[Jamp]

I've just got a new place which has 3 external UPVC doors. Long term I would like to replace with timber, but in the meantime I'd like to replace the locks with snap and bump proof euro cylinders. Ideally I'd go for 3 keyed alike to minimise keys and confusion. They seem to often come in keyed alike pairs though, so one pair and one single would do.

What is folks' experience/point of view with regard to thumbturns on the inside? It sounds like a good idea for escape/ease of use, but perhaps less than clever when all the doors are part glazed? Any alternative options for over night security but with ease of escape, without using the main lock?

Any advice on which locks to go for and any good online suppliers?