Might want to keep that generator gas-powered...In my life I think I've owned a big variety of saws, several Poulans that were fine until I used them on jobs, they were worth what I paid. I have a Husqvarna Rancher 455 with 20" bar that will cut about anything, at that time was half the cost of the Stihl (which like all tools if you need it a lot it's worth that). With that said I haven't used the cs in a couple of years - I plug in my knock off Sawzall and have blades from 6 to 12" and cut everything and don't worry about dirt/sand as the blades are really cheap. It even took out the really old Sago palm that died and I just kept cutting all the roots until it gave up.
I have a number of gas tools from chopsaw, pumps, generators, lawn mower/weed whacker etc and am looking forward to a gas free future.
But same here. The key is to get everything taking the same batteries. Get a new battery with every purchase and with a half dozen charged you're going to run out juice before your tools do.