I’ve used it several times. If you have to have an inside corner it’s great. You saw it in the showroom I assume?

I've yet to see it in real life. In my previous kitchen, I left a space in the corner to put an in-wall drawer base on the other side of the wall. This kitchen does not offer that option, so I need to decide if this insert will meet my needs or if I should look for a Hafele LeMans unit.

Get the ikea. It’s integrated into the structure of the cabinet to maximize space.

This is what's known as a "Blind Corner Cabinet" -- one of the less-than ideal ways to handle a corner.

The Ikea unit works great.