If you want to buy altcoins, you need to do some research. I had a good amount of profit thanks to trade alerts from Altcointrend.com. You can follow trade alerts here http://www.altcointrend.com/category/trade-alerts/
Yes, its better to diversify. If you want information on which coins to invest, visit http://www.altcointrend.com/ for trade alerts and altcoin updates.
I think altcoins have a great future. If you want to invest in altcoins, keep an eye on http://www.altcointrend.com/, an excellent resource on altcoins.
No crypto is perfect. Although you can compare pros and cons of cryptos and decide which one is better. Minexcoin is a promising crypto, read this article for more information http://www.altcointrend.com/2018/03/12/minexcoin/
Invest in Minexcoin, you wont regret. Good parking rates ensure excellent ROI. Also its resistant to volatility due to an algorithm incorporated in Minexbank. Here is a good article about it http://www.altcointrend.com/2018/03/12/minexcoin/