I use Piergiacomi tools (
http://www.piergiacomi.com).
They are made here in Italy (I've seen the factory), maybe they are not so good or so durable as those pricey Swiss forged tools, but they work.
In our small production environment we buy about one new cutter each year, and the "mean life" of a Piergiacomi cutter is about 5 years (and maybe in 5 years it has cut 100.000 leads).
One interesting thing: I was looking on the Net for the prices of the other brand's , and I discovered that all the brands are cheaper in the US than in Italy.
This is not a new discovery: every tool is cheaper in the US, but here they cost from 2 times up.
Some German manufacturer is selling directly form the website: I will buy some, to see if they are better than the ones I use
Regarding VIHA, I've never touched they side cutters, (on the web-photos they are similar to the Piergiacomi's) but I own two Phillips screwdrivers from them, and the are really the best screwdriver I ever had.
The are in their 25th year in the lab, and the only problem with them is that some times they are found in the pockets of some visitor..