I can only say the most important thing that I have had time to evaluate for six months of working with contactless payment system. It is much easier to work and payments are fast, without delays or any other errors. Moreover, it is much more practical in contrast to usual payment terminals. Well, if you want to get detailed advice, you should contact the specialists. To begin with, please read the information about Softpos Solution
https://m4bank.com/softpos Also, the specialists of this company will help you to connect this system if necessary.