If you like seeing your funds either increasing or seeing it at least there without anything affecting it, I would suggest to stay away from marginal trading. The thing is with margin, you will need a lot of experience and you will be better off using other platforms to do normal trading than trying to make use of marginal trading platforms and betting based on leverage. The market is extremely volatile and one thing with margin is if you get too greedy you can actually get scooped out in a second.
Perhaps trading with margin is profitable when you see a stable growth of a coin and trade in a short. That is, it is trading on short time intervals. But, there are cases he himself observed - a very sharp drop in the rate, even on coins from the top 10.
Stable growth is something which could NOT be observed easily by all the traders. But, margin trading for short period of time may work if we are capable of squaring off before any big fluctuations.
This topic should end with this comment. All has been said and all on point. I can't add more but to praise this one. Maybe I can add or say in other words that Margin trading is for the experienced one that can endure the risk of shorting. A very risky indeed as you are more betting than trading.