If we compare ETH in 2017 and 2019 it is certainly very different, in 2017 is a happy and profitable year for many people who are in cryptocurrency and in 2019 at this time I feel that for the moment it is better to hold it for a long period of time and continue to observe market movements to determine when we will sell the coins.
A lot of things have changed if we compare ETH in 2017 and 2019. Back then in 2017, we sought ETH as a replacement of BTC but right now it is struggling for its own existence as many of the alts have come up and are sought as to its substitution. However, the price of the coin had decline so much and looks way more far from the ATH that it achieved previously, I believe that it would soon rise and we will be seeing a new powerful ETH hopefully...