Which crypto exchanges or crypto trading platforms do you use and why?

When I first started learning about cryptocurrencies, I encountered an exchange problem – many platforms are either too slow or have large commissions. After recommendations from friends, I decided to try Paybis https://paybis.com/ . They didn’t charge a commission for the first transaction, and the exchange was completed instantly. Everything you need to work with cryptocurrency, including a crypto wallet, is here. Now, when I need to exchange or transfer crypto, I always use this platform.