The tops of these tables are a matte finish and show every mark and they don't seem to come clean. 
The tables are  good for shorter glasses  & food because they are more stable but I wouldn't recommend using them for stemmed wine glasses. 
Also it's great they swivel outwards on our two outside seats but we don't use the table for the centre seat as it would encroach on that person's space.  
I would recommend end tables instead.