I have a Icegator attacker ll. Really like the unit. Have an 8" lazar on it. Most holes I've drilled with it was last winter, 24 holes in 28" of ice. It was still going strong and I didn't notice it slowing down any. Don't know how many it would have drilled.
Bad points-- It is a little heavy but supposed to be lighter with the ion batterys
Had a problem with the switches( some people did) but that problem was solved by Icegator
If fishing for several days, have to find a way to charge batteries, you can charge from a pickup ,4 wheeler, etc.
Good points--- No gas to mess with
Can have spare battery to increase run time
No noise
Cuts really fast
No starter rope to pull on easier on my bad shoulders
Starts every time
And I could go on and on but you get the idea.
I also have an old Strikemaster Maglll that I have had for 10-15 years which has also treated me well, but thats my backup now.