I would prefer natural stone cladding instead of exposed brick decor. This is simply because natural stone cladding can provide a classy and elegant appeal to the home. Also, it is easy to maintain and lasts long. Another reason I would prefer stone cladding is that it provides a modern touch to the interiors. I would also prefer patterned tiles or textured walls over exposed brick as I feel that it makes a space look more lively and beautiful.

If your question is around kitchen slabs. Quartz is an engineered stone. Basically wastage/chips of natural quartz stone is mixed with a resin and pressed into form of slabs. Hence the name - man-made or engineered stone. In day to day language they are commonly referred to as quartz slabs. Quartz and Marbles are two common materials used for making engineered stones. Thanks, Amit Cornerstone Designs Bangalore

I have some suggestions if you are thinking budget friendly changes. Make a photo gallery with different size frames and arrange them parallel to the stairs, so you can enjoy each photo as you climb up. And for the area that will be on a level with your upper floor, try some pretty decal that will connect the photo gallery to upper level. And last, if you have budget add some beautiful hanging lights in the stairwell. Also think about repositioning your refrigerator.

Veneer with White PU is a great Option. Alternatively you can go with Duco which is slightly cheaper than PU. Laminates always have a sharp edge unless done with the right expertise. Fabrics, if going with white, should be scotch-guarded. Mostly, white PU will work on table tops too, but if you want to use a sturdy option, go for white lacquered glass or White marble.