I am very pleased with the performance and durability of my three Model 23's, a 12, a 20 & a 28 gauge. 30+ years of use for the 12 and 24/25 years for the others. The barrels a chrome plated and if you get one choked IC/M (26" barrels) or one of the late guns with the choke tubes, you could use steel shot (if you must!).
I have used my 26" IC/M with good results on ducks and Sandhill Cranes.
I would not have choke tubes installed, but that may just be me.
The Model 23 was the first double to offer choke tubes.