Perlick Brass Faucets

I really like the price and look of these faucets.  Has anyone here had any issues over extended time with flaking or tarnishing?

Is the brass finish only on the exterior?

I had brass (well chrome plated) Sankey D coupler. After 1/2 year of use coupler froze and I can not use it anymore.
When I took it apart it was all green (like copper green) inside.

I would go SS.

I’ve had them on my beer cart in light “off road” conditions for about 8 months now, and they are holding up perfectly. YMMV.