Wondering what the QoL improvements are? Just picked up the base game, haven't played or downloaded it yet (probably won't for some time).
The QoL improvement features have wide scale impact on how players chose to sandbox their game play. From Survival themed RPing to gather, protect and/or defend your colony from the environment/NPCs and/or other players like here:
to engineer/build and customize your base HQ as a trade empire, as a space faring warmonger who builds up a fleet (solo or as a faction) to engage in PvP or with NPCs, to doing your own Privateer sand box missions, to building and customizing your own fighter ship to engage in space based battles ED/EvE type battles (with significantly less HD graphics lol) etc etc. Sky's the limit based on your immagination. SE is basically space Minecraft on steroids with superior HD graphics
Here's the official Keen dev video showcasing all the new features of the Economy Pack update
And here's what the DLC update adds with a decent commentary (one of the best YT SE reviewers to date). Just found out the DLC lets you put bounties on your
enemies friends frenemies
So besides adding more emergent sand box game play (new vending machine feature) for trade with other players (if CoOp/multi) or NPCs (if Solo), an official BH career is now a definite career and money making possibility. Same thing for players who wanted to RP aspiring privateers, mercs and/or criminal RPing like pirates etc. There wasn't a way to officially do this as a sandbox transaction or full time career AND get paid before this update.
But now that you can get guaranteed payment in a safe and timely fashion with the new added ATM module feature. This feature now allows financial transactions ranging from scale of simple ATM withdrawal at your personal base HQs/remote NPC vendor locations to full faction/guild style banking on a global scale. And this is again possible if you're playing Solo or with other players in CoOp and multi modes. I typically prefer solo mode. But with this update to trading and finance, I'm now discovering the multi player mode is a lot more fun being able to interact with other players and factions. Makes it easier to acquire materials (especially the rarer mats) and money to build your ships and HQ faster.
It's refreshing to see how responsive a AA dev like Keen dev is to fan base community requests. There's always something new to discover and do with SE.
And this is not a bash on Star Citizen. But I suspect that if SE were to be re-textured with the ultra HD graphics plus ability to build the pretty ships which SC has, I suspect a lot of SC fan boys would be secretly playing SE in the closet.

Because there is a lot of existing game play features in SC which pretty much mirror what has been released in SE (less a dynamic game economy, distinct playable Solo/multi/CoOp modes, a stable MMO experience, and stable server performance) to date.