I'm sure this question has been asked before, but on custom kitchen cabinetry (bare wood) is gel-stain with a gel-urethane topcoat a suitable and durable protective coating? I've used it before on custom furniture that isn't going to take as much abuse and it seems ok. I can apply it fairly well myself of course which is a perk. However, if it makes a world of difference in durability, I'd just assume hire a finisher to lacquer the cabinets and components or use some other sort of harder/thicker finish. Note that this is for my own kitchen and not a job I'm selling.
From contributor S:
It's an acceptable coating for an entry door. The fiberglass door stain "kits" are these products, and seem to hold up extremely well. An entry door takes a lot of abuse. My suggestion is that you go for it.
Gel stain is a slightly different issue. When we stain our woods we like to maintain the grain of the wood. A gel stain can cause a slight hazy effect. Two or more coats and it looks painted, so if you use it limit yourself to one coat and follow with clear gel. The one place I did use it was to match a lady's existing cabinets that were cherry-stained oak. But again, I only put on one coat of the gel stain.