Ether is a good coin. But you must make a decision based on your goals. If your goal is just hold for 1-2 years, then you can buy ether or any other promising coins. Just don't forget to periodically follow the news, because in the world of crypto currencies everything can change quite quickly.
If you want to trade, then bitcoin and ether are better suited. It will be easier for you to buy other coins for them, on which you will learn to trade.
In general, ether is one of the most promising altcoins today, so in my opinion it is simply necessary to have it in your portfolio.