Although my Hill Dwarf Paladin is super happy with the purchase (from the Antiquarians / Snow Dwarves),
there is a small error (though every tiny AC bonus is a big deal in 5e).
A normal shield gives +2 AC.
The Magnificent Shield description reads "+3 AC (2+1)",
but in fact I get a whopping +4, so a shield +2.
Steam profile : https://steamcommunity.com/id/baraz/
Update : I found (loot) another Magnificent Shield (+1) and it also gives +4 AC.
Steam profile : https://steamcommunity.com/id/baraz/
It's listed as a bug on steam as well. if you pay attention, ALL magic armors have been getting an additional +1 AC.
Ah, did not notice the armor bonus.
My two melee characters have 21 to 24 AC at level 4-5 :P
Mind you some fights are hard enough that I need rather high AC, but 24 is generally too high for 5e rules.
Steam profile : https://steamcommunity.com/id/baraz/
I had a bug with my +1 shield where it wasn't giving me the AC bonus at all and was not appearing on my character despite being in the inventory slot. After a day or so, most likely due to a program reboot, it started to appear.