Generally easy to set up if you have compatible components. However when components start to show their age, particularly shifters, friction starts to look good.

I use friction on all my bikes right. Most of my rides are on flat terrain and I pretty much just dial in one gear. If I were in hilly terrain, I'd be tempted to revert to indexed.

I suppose this leaves me open for someone to comment, "Only the inept or technically inferior have trouble friction shifting on hills".