The town building has been fun and it's a lot less intrusive to engage with than Necropolis. It's a bit annoying that some upgrades in town require ore but I want to smelt for shipping. I'm definitely behind on my upgrades, since all the ports are demanding really high quantities of goods and I'm not producing them fast enough.
I've been spending all of my gold recently on getting hundreds of fuses in the exchange, hence why I've been neglecting town upgrades. I'm trying to six-link my armour, and I'm about 2000 fuses in without success. For now, I'll have to settle for a five-link; my damage is already good enough with that.
I'm being a hipster and running a melee witch build, using Occultist for the chaos damage pops. I've spent less than ten divines on gear so far and can one-shot T16 maps, but my survivability is definitely falling off. My life globe is a yo-yo.