What decent router to buy for a 145m2 house

Hi there,

Atm I am using a vodafone provided router, but we are using an extender as the range isn't good enough to go through the whole house. The house is around 145m2, so it will be in the roof but want very good coverage round the whole house. What would you guys recommend? Not sure what brand to go for?

I am looking for one with at least a dual band but triband is even better as well as 2.4 and 5Ghz too, we are using fibrex so something that supports vlan tagging would be needed. Guest networking is a must as well.

Would prefer one with a very good update history, so one that is gonna be updated for quite a few years.

Thanks

Any more info let me know and happy to provide :)