Generally they are trouble free out of the box, offered in many calibers with an appropriate twist rate or choice in some calibers, they do not need to be 'trued' 'lapped' or any other tricks to make them shoot well.
The triggers are very good and adjustable by the user, there is a big and growing aftermarket for customization.
The Tikka rifles have excellent barrels, the heavy varmint contours are on par with any good aftermarket brands, the actions are smooth (with no smithing work to make them so).
The only thing I do is bed the action, this aids in consistency, but for hunting is totally unnecessary.
They are reasonably priced for what you get, what you get is solid performance.
Some do not like the feel of plastic (actually a polymer) but it will stand up to rugged use and is actually quite stiff.
With best handloads they will hold in the 0.3-4 moa range for 5 shots and 0.7-0.8 range for 10 shots, this is at 1000 yards.
