hand held or bench oscilloscope?

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I'm looking at getting an oscilloscope and cant decide on a decent "ish" hand held one for basic signal checking or whether to just go for bench one?

the Hantek ones seem to get good reviews and isn't to pricey at just over a ton.

it will mainly be for logic testing on Arduinos, STM32 etc but I can see it might be handy for the workshop as well. does any one use oscilloscopes on their CNC setups?

That's not easy to answer...

I have a Hantek MSO5202D which I use frequently and very happy with it. I think it all depends on how you plan to use it and how often plus of course how much money you are prepared to spend on it. If you just want to test logic and simple, low frequency things then you can use basically anything. Beware that many of the small and cheap battery operated ones don't have any mains protection and have limited maximum values, so if you intend to use it around a CNC then you should be careful what you chose. Also beware, that the cheap ones may not have good enough display update frequency and may have VERY limited buffer. Many things to consider. The higher the sampling frequency per channel the better it is, but they also cost more.