Tamiya light curing putty

[rickshaw]

Does anybody use this stuff?   Is it any good?

I normally use Milliput for big jobs and Vallejo putty for the little fiddly ones.

[Dizzyfugu]

I sometimes use two types of Tamiya Putty - not certain if it is the one you mean. Both are 2C, one is ochre, the other light green - they simply differ in curing time, the green one remains "open" for several hours while the ochre stuff hardens much quicker.

I like it a LOT 

Yes, the stuff is relatively expensive (and officially not available anymore in Germany, but I keep a small stock imported from Hong Kong!), so I do not use it en masse. My main use is for delicate sculpting jobs, e .g. on large scale resin figures where the normal 2C putty I sometimes use is just too rough or hard when cured.
Effectively, the dry Tamiya stuff has a hardness that is very similar to styrene, which makes surface finishing very convenient.

I'd recommend it, esp. ehen you have to do fine sculpting or needs to fill large, shallow dents where you do not want the putty to shrink and you need very smooth transitions between putty and styrene.

[Dizzyfugu]

As an addendum - in case you mean the white stuff from the tube: I haven't worked with it personally, but "seen it in action" and heard good things about it from others. Very fine putty, rather stable, easy to sand and finish.