For centralized exchange, I only used high trusted exchange and the most popular one , those are Binance and Huobi. And for the small exchanges, I use it only for sell bounty tokens. I did use LATOKEN a few year ago and everthing is running smothly, but I never been use Cointiger. Just becarefull use Centralized exchanges because they have full control with fund of user.
I also only use small CEX to sell bounty rewards, well we all know not all projects have sufficient funds to penetrate the big global market. while using Latoken I didn't encounter any significant problems, it's just a shame the fee is bigger than the exchange in general. the rest is fine.
when the IEO was hype, many new tokens were collaborating with latoken. and it doesn't seem to make any significant difference, the sales rate is not as big as expected and many other problems.
it's better to use global exchanges like Binance, huobi, etc. to keep your assets safe. yes, although there is no guarantee that your assets are always safe due to the many hacking threats, at least the big exchanges will be more responsible to their users.