Getting started with coinbase can be good as it is surely the easiest exchange to use. Their problem is that the commissions are very high since they normally exceed 2 or 3%, a real outrage if you do trading, an excess since you can only imagine the amount of money they make at the expense of their users. I think that if coinbase lowered its commissions it would be number 1, the question is if one day it will.
Switch from coinbase to binance like most traders due to these high fees. It would be good for new traders to take this opinion into account to understand that in the medium / long term coinbase is not the best option.