They are fun little mechs - but you notice the cheap price, it also means some cheap problems, lol, but they can be overcome.
I got mine from FastTesch
A big concern is the battery contacts inside - use extreme care when placing the battery
The contacts will rip into the battery wrap on the top and bottom edges if you are not extremely careful. I ruined a perfectly good battery first time trying it out
Also, make sure you use floss or anther thin, strong string, ribbon, etc. to place around the battery to help pull it out.
The stock bottles are the A #1 worst I've ever tried, hands down period.
No comment on the attie it comes with - never bought one with an attie because as a rule, atties that come with squonkers are awful, so never tried theirs.
I've seen some posts that reporting other difficulties - but many are more personal gripes that universal problems like I posted above.
Mine is reserved for fun - would not ever recommend it for anyone's daily driver or even a reliable backup.
Would recommend if you want to see if a tiny plastic squonker is for you