This is one of the oldest cryptocurrency mining services, and over all the years I've used it, I have had no complaints. Everything is designed for customer convenience. Firstly, the prices for hash power are reasonable, and mining starts immediately after registration. They use modern technology and powerful equipment. I also liked the interesting service — the option to sign a contract with an insurance company. Additionally, there is a chance to try a demo version at no cost, which helps in deciding on the contract. The selection is decent: you can start with an annual contract at an affordable price — for example, $20 for 100gh. After that, it's worth increasing the power to boost income. Mining is only available for Bitcoin, but that's quite enough since they are expensive and popular. Over the year, my income exceeded 180%. Profits are calculated daily in Bitcoin. There is an automatic setup feature, which makes the process fully automated and requires little involvement. In my opinion, this is an excellent service where you can keep track of the situation. Withdrawals are quick, and there are many options available. The minimum amount for withdrawal is 0.001btc.