When it comes to taking card payments you have two paths: use the card machine your bank offers or have your own card machine. Neither is “bad”; they simply fit different situations. We'll help you see it clearly.
The bank's card machine
It's convenient because your bank gives it to you and that's that. In return, you're usually tied to that bank's terms and commissions, and switching later can be a bit of a hassle.
Having your own card machine
Having your own card machine gives you more freedom: you choose the equipment that suits you best and take it wherever you want, because there are portable models with 4G and WiFi to charge at the bar, on the terrace or on delivery.

And if I combine it with my POS?
Here's the interesting bit: if you integrate the card machine with your POS, the amount passes on its own from the sale to the payment, with no re-typing and no errors. You gain speed and less fuss when balancing the till.
So, which do I choose?
It depends on your business and how you take payment. At Chollobar we advise you with no pressure: we look at your case, tell you the options clearly and configure the equipment so you can start charging from day one.