Rewards are getting less as time goes on. When we first started, I was getting 2 SGB foe every 100 WSGB. Last week it was down to 1.15 SGB for every 100 WSGB. But it's better than sitting dormant in my wallet. There are videos on youtube as to how to do this.
I have been very pleased with Bifrost, apart from it not being able to support hard wallets at this moment. One point to note- if you ask questions or ask for help on twitter or other social media, phishers with spam you with cleverly created "bifrost support" channels of all sorts, usually with a link to click or form to fill out. Sometimes they will even ask for you to enter your private key info. Make sure you don't fall into any of these.