I really like the design of this model but I don't like the fact that it's made of metal. I don't like metal models, it's harder to work with them, clearing all of the moulding lines, removing some metal excesses and of course the paint sticks a little bit differently to metal than to plastic. But as you can see it's possible to make it look quite good :)
And the last photo here is the comparison of my two Techpriests - it's been almost two years since I've painted the first one!
Now I can only wait for the release of the Cult Mechanicus Techpriest Dominus!