Aries, I think you are making a good choice with designer white.
I have attached a pic of the difference between a "brilliant white" (Home Depot Behr paint color) on the shown door jamb -and- my refrig cab in frosty white (refrig can just installed today so not finished).
But I will say, in the picture, the frosty white may look a little more creamy than it would in a normal situation as the light may have played a part. But it may help to show the creamyist possible scenario with frosty white.
I will say, the way I did this creates a lot of detail work (joining cabs, scribing can bottoms to make up for level, attaching toe board backers, toe boards, measuring everything twice, making sure things are joined together well, etc).
So what I am saying is: If assembling conestoga cabinets is a medium task, joining cabs, leveling, installing, etc. is definitely advanced work for a pro installer -or- a very handy person with tools and patience. In other words, it is a decent amount if work to get it right. But I am doing it a hard way from custom face frame stiles (which prevents me from shimming) and requires me to scribe cabinet bottom edges to get level.
Lots of measuring, testing, removing, testing again, etc.
Also of note, inset conestoga requires some 3/4 inch blocking to be installed to attach drawer slides (and door stops in some cabs).
Moving and setting cabs can take some assistance (especially if you join them prior to moving into place).
Also: if you don't have a very high ceiling next to your kitchen, a refrig (or other tall cabinet) can will need to have some pieces cut off back corners to be able to stand it up under the celing. Nobody wil see the pie cuts though.
I was lucky to have a 2 story family room where I am doing my assembly. I stand the refrig cab up in the Family Room and then slide it into the kitchen area. It is a big cab and I moved it myself but it was a but if a chore to stand under it and basically carry it.
Q
Conestoga good discussion
Q