I have a gas chainsaw for outside work, mainly working along side the sawmill and bringing timbers to finished length. Inside the shop I have an electric chainsaw that gets used plenty. Ripping tenons in wonky timber, plunging some mortises where the chain mortiser can't, rough shaping of curves, brushing back the knotty spots. A good person to learn chainsaw technique from is a log cabin builder, those guys use the chainsaw a lot.