Whalesburg is a mining pool that supports BTC and ETH mining, although I quote the Grin coin I was unable to access the settings on the platform to mine it. But at first I noticed that the site is very simple to operate, in it we can make a fine configuration of our mining and also monitor its progress, payments are made every 20 minutes and the available language is English and Russian , this point I found a little negative because we know that mining reaches worldwide levels today, a pity that we only have these two languages. A mining option for BTC and ETH. I couldn't get information about the fees but I liked the simplicity and practicality that the platform makes available to its user.