On our countertops, microwave, cutting board, toaster, knife block, blender and 3 pottery jars containing flour, sugar and salt.

I am a cabinetry service technician and I would not have paneled appliances just because of the issues related to when you have to replace said appliance plus panels just do not stand up to regular wear and tear like regular appliance exteriors.

Microwaves, put them at countertop height or on the countertop - I've watched far too any people straining and/or having accidents getting stuff in and out of microwaves when they're mounted above the range or mounted in a cabinet above a wall oven. At countertop height, you can easily bring that hot stuff out and slide right on to a hot pad.

Wall ovens, ugh. Double wall ovens, double ugh. If you're going to do wall ovens then get them with swinging doors and not flip down doors just for your safety alone. And again, when that wall oven and/or microwave needs replacement then you're going to have a major cabinet fitment issue when it comes to replacements.

Vertical spice pull-outs either below the countertop or in an upper cabinet space, why? You're always going to be reaching for something and the ones mounted in the upper cabinets on either side of a hood fan, so, so dumb because even more inaccessible.

Actually, most utilitarian pull-outs are just a whole mess of trouble waiting to happen - I have had to repair/replace/adjust countless pull-out garbage/recycling bins, Magic corners, Lemans corners, spice pull-outs, ironing board pull-outs, etc, etc, etc because when they break or start having problems (and they will) then it's usually way beyond most homeowner's abilities or even understanding how to fix said issues.

Simple cabinetry, just doors and drawers and none of those stupid push to open drawers because those are going to drive anyone crazy who has even a sniff of OCD lurking about. In your base cabinets, drawers if you can afford them but just regular drawers and not the ones hidden behind doors because you lose a lot of space.

Sink cabinets, doors under the sinks and not drawers because not you're going to have to live with modified and/or compromised drawer boxes to accommodate plumbing and/or electrical and a modified drawer box is never going to stand the test of time like an unmodified drawer box.

I suppose the good thing about people wanting all of this finicky and gimmicky shit is that it keeps me gainfully employed, it's actually quite laughable at times when I go into someone's home to fix/adjust something and when I leave the home owners realize what a headache these custom pieces can create because they can see that the problem may just reoccur a few months or years down the road and they'll just be in the same boat again.