Isnt the JT 6.0 the one with the talking stuff? People say the voice is annoying because it tells your oppenents where you are when you creep up on them. But basically most blowback guns are easy to maintain, the electronic ones just have an electronic grip on a mechanical body so the electronics dont have to be messed around with. I still think automags are a really good starter gun though, just sold mine, but I noticed someone else selling one.
It all depends on how confident you are about taking it to pieces
When you buy it, take it down, put it back together, dry fire, take it down again, build it back up without the instructions, test fire again and keep doing it until you are sure that you know what every bit of your gun does and where all the o-rings are.