I am usually signing up for new exchange if I am holding or if I want to buy some niche coin or token that is how I have got aquinted with Cointiger. I like that there are lot of trading pairs and some of the tokens can be traded only on Cointiger.
The main feature I am fan of are the daily tasks for points which you can change for Satoshis.
The design is somehow little bit confusing and you can be lost in menus because there are a lot of features.
On the other hand there is phone app you can use which comes handy.
From the trading perspective there is a good liquidity and lot of user, there is no problem with slippage, reasonable fees. My experience with trading is good and smooth.
There are lot of features common for exchanges nowadays such as investment accounts, derivatives, fiat gateway etc.
One of the unique feature is implemented forum where you can discuss whatever you want but mainly what to trade.
Overall it is worth to try the exchange as at least you can get some free Satoshis.