Best portable pen tablet?

https://www.amazon.co.uk/Parblo-Coast16-Digital-Pressure-Universal-Coast-16/dp/B07CYPDS4K/ref=mp_s_a_1_9?ie=UTF8&qid=1548689091&sr=8-9&pi=AC_SX236_SY340_FMwebp_QL65&keywords=15.6+inch+tablet+pen&dpPl=1&dpID=51svqRbrXLL&ref=plSrch

I do not own and have never used this tablet but one of my colleagues who teaches Games Art told me he bought one and it is excellent. I want to buy one to try it but I have an iPad pro already so cannot justify the purchase.