Read any of my post on the 261, hands down the 261 it is as good as any 50cc saw on the market, imho one of the very best, it is not however a milling saw, you need to look at 90cc plus. The 261 is rock solid, one of the members here THALL posted he has sold almost 60 of them and not seen one back in his shop yet. My sons use two in our wood business and they have been bullet proof, I wouldn't trade mine for any other 50cc saw on the market. Absolutely love them, one of my all time favorites in right at 35 years running them. We sell the fire out of them at our shop, predominantly to the tree service pro's and several to full time firewood operations, several have bought multiple units. We have not had one come back with any issues.
Saw Troll will show up and bash them, but he bashes all Stihls and has never used one. They are a fantasitic saw.