Hopefully by the time you go they have fixed some things. When I went in 2019 it was pretty cool - lots of real world effects for hacking ships and whatnot, and yeah, it would pick up credits from flying the Millennium Falcon and stuff.
When we went in April, I'd say about half of the real world hacks didn't seem to be working (I couldn't get the Dianoga to pop up in the water fountain tank, couldn't get any response from the x-wing, etc.) The only thing that seemed to be working consistently was the droids. Additionally, the beacons in MFSR appear to have been down since reopening - no one I've talked to has gotten their payout to show up on the datapad lately. Of course, I don't talk to that many people...
It is fun and if you don't know what's supposed to happen, I guess you wouldn't miss it. You still can get all the collectables and there are missions you can complete to gain faction points. But I did feel pretty silly since I had someone with me who hadn't been to GE yet and I was all like "WATCH THIS!" (fiddle with datapad...friend looks at me..."WATCH WHAT?"...I look at friend "It's not my fault!")
I agree with
@CodeGoddess that Disney seemed to have a lot more planned for this, but decided to stop developing it and stop maintaining the interactivity within the land. Probably another casualty of the GSC paywall (I mean, why would we develop it if it isn't making us more money, right?)