Have a worktop with the walls above it tiled. Worktop goes under the tiles. Grouting between the tiles and worktop looks excellent when done - but over time, movement of the worktop cracks the grout.
Really don't like the look of a silicone fillet.
Is there a small posh looking trim that would do the job? I generally dislike those too - usually used to cover a poor transition. Or rather look like it to me.