After reading I wish to add more to this thread.
Logging/cutting firewood is a big industry in the area I live in. We have plenty of places that sell chainsaws and related equipment, that include the big boxes, of course you got to be careful with them as many times they have a clone available of a good brand that is much cheaper(for a good reason) We also have a bunch of places that sell and service higher end equipment. Without a doubt Steihl is the most used by the pros or serious firewood cutters. IMHO it appears Huskie comes next and the others are fighting for 3 or lower place!
Using Steihl oil: that's all I use for all my two stoke toys and tools. That synthetic oil is a bit pricey but I have found things start better run better and I turn over my supply and it normally it's a very fresh mix. It makes my over 35year old Lawn Boy starts like it's brand new. I also ONLY use none E high test gas!
I sharpen my own chains; it's really not that difficult. I do it by eye and a hand held file and of course I realize a holding tool should do a better job, but I'm quite happy with my results. Been doing that for about 40 years. I have 2 bars, 5 chains and I have one chain reserved for "junk jobs" (cutting close to ground, finish cutting a large diameter long that is sitting on the ground. Etc.
One poster mentions the "rakers". That is something most people do not seem to know, a little file work on them now and then can make a big difference! You will find having two or more bars can come in handy at times, as sometimes you goof and the tree imprisons the bar and chain your using

. Simply leave them in the tree and attach another bar and chain to your power head. Be more careful and then salvage your stuck stuff!
Where I live is a ¼ mile off the road and the winds can get nasty at times and a large branch goes down or a tree might fall and block my driveway. Having a good dependable saw there and I can cut my way out in a little time. Heck I have even cut up a tree that blocked my (back road) highway to civilization after a viscous wind storm. Good thing I did as our highway department was very busy and the road would have been blocked for about 2 hours based on when they showed up and finished the job. Course I was first on scene as many other people up here would have done the same thing!