any advice for a new chainsaw owner?

Always be sure to have good footing and don't stand on a pile of cut logs while using th saw.

Before you start cutting into a tree to drop it, make sure you have enough gas in the tank to finish the job without having to stop and refuel.

Always find a clear escape route.

Misplaced confidence leads to injury.

Have a way to free a stuck saw. Wedges, 2nd saw, falling lever.

Don't walk around with a running chain.

good advice 16 in. chain saw at the very least CHAPS!

hearing protection

never cut alone

(one you don't always see in the safety part of the owners manual any more): don't let anyone stand in diectly front of you. Should the chain part, they could get a face full of chain.

Most of the owners manuals have a pretty good safety section.
Not every point is perfectly clear. If there's one you don't quite understand. Ask.

Congrats on the saw. I've got a buddy at work that cuts everything with a 2150.

When you get some time on the saw and want to know about better chain, come back and do a search. There are much better options that what came on the saw or is available at you local big box store.

they have 2 handles for a reason... So keep at least 1 hand on each when cutting
My brother-in-law found this out the hard way almost lost a finger