Definitely a must have for any artist. Built amazing, runs great. I also use the MarsU by ambition. Both are amazing. I did 9 tattoos with this today right out of the box. It’s a little heavier than the mars u but I like heavier machines. With my hand speed I lined at 11v with a 3.8 with same stroke adjustment and I color packed at 10v. and shaded at 5.5v with 2.6 stroke adjustment. It ran every size needle I tried today perfectly. I put in a 27 curved mag and packed and shaded like a dream. This machine is a beast. It locks the cartridges in I def like this feature on these machines. You can lock the screen which is great because I did notice I would change bolts before I figured out how to lock the screen. It ran all day without charging I did only get the single battery version I do wish I bought the two battery version because this is definitely going to be my daily driver. Thank you ambition for these amazing machines and affordable prices. Don’t let the price fool you this machine is no joke. I def believe this is better than my higher priced machines and will be used daily. I made 10 times what I paid for it on the first day i had it. The case it comes with is great and also comes with the av cable to hook to a power supply. I didn’t try the power supply on it because I love being wireless. Don’t hesitate I’ve been in business 14 years and am blown away by this machine and their marsU. 27 Mag was the biggest I had I believe it would push bigger. The timer on it is a nice feature as well. Again thanks guys u just made my life so much easier. Im rocking the ambition sticker on my truck.