Like Merican Eagle said, your fishing style really plays into this. I personally have an 8″ ION and love it. I personally would hate having to go back to a gas auger now… I was initially worried about battery life on the ice, but I have 2 batteries and 95% of the time would only need one and I drill more holes than most.
The extreme lightweight, no exhaust, and literally pressing a button to drill are all awesome. I’m not a guide, but I take a TON of people out fishing, including kids, and I love being able to give them the full ice fishing experience. With the ION, everyone I take out can drill holes, many times the first time they’ve been able to do it and they think its a blast, so I love that too. When I’m out with big groups I also use a hub quite a bit, and being able to set it up and then drill the holes inside works awesome.
My next choice if I had to give up the ION would be the Eksimo HC40. I have two buddies with those units and they run great. Still don’t have to worry about gas, and no fumes. They’ve never had issues with them starting in very cold weather, either. (Just noting this because I see it as a concern from a lot of ice anglers thinking about propane.)
As far as feedback from ‘us’ on the forum, understanding your fishing style would help give insight! How many holes do you normally drill? Do you drill in a shack ever? Etc.
Being in Iowa, your ice depths most likely don’t approach what some of us in Northern WI and even more so in Northern MN see. With this in mind, Electric really could be a great option for you, IMO.