Algotrading crypto

Hi,
I`m searching for people that are interested to share experience in developing algo trading.

I have spent the last year developing, testing and failing in a variety of markets. Have been testing options, stocks and crypto. When it comes to algo trading I have finally come to an conclusion by using Kraken and I do find the exchange reasonable priced and the API is quite good, including the support have been very good by my experience.

I`m curious to hear what other traders are using in terms of exchange, strategy and how they are performing.

Anyone that have any idea experience what we can expect in profit?.