I think your benchtop material choice really depends on how both you and your husband live and what level of natural wear you are comfortable with showing. Natural wood benchtops to me are very similar to natural stone or stainless steel. The surfaces will naturally age and show use, scratches and imperfections much more than say a caesarstone if it's a high use area but some people love that look and it goes well with an industrial or natural style. My wife and I thought long and hard about it but realised we want the benchtop to look as new and clean each time as possible so opted back for caeserstone (Ocean Foam) which hid small stains and dust :)

If you pull off the mosaics think about trying to get a subway style tile that matches your wall tiles. Update the vanity with gloss doors and more modern handles and have a wider vanity with either an undermounted sink or above mounted sink (undermounted will give you a cleaner eyeline and easier cleaning) and caesarstone benchtop is a great material to use - it's dead easy to clean. I'd keep the colours light matching your tiles and bring colour in with towels and items such as soap holders etc which are easy and cheap to change. While your at it, have all the grout professionally steam cleaned and if required re-grout (and don't forget to seal the grout - make a big difference). Get rid of the shower caddy hanging off the shower and put in glass corner shelves in the shower.

An outstanding job with one of my preferred material.

What material is it and by integrated does that include basin?