If you are currently using a manual wheelchair, then almost certainly you will be delighted with this chair. You don’t have to have core strength.
Gear change, brakes and changing between the two modes all require some hand strength and some dexterity.
As a very crude test, if you can turn the lid to open a tight jar, you’re probably OK.
Get a free demo, and you’ll soon see. Go to the home page and click on “Free demo”.
Seeing is believing. Arrange a free demo You’ll be amazed.