Alpaca Markets?

[Saluki]

Is anyone familiar with this company? 

 

https://alpaca.markets/

 

According to LinkedIn, they have 123 US Employees and 39 Canadian, so I figured it's worth a shot asking here. I saw a job posting for them, but I'm not familiar with them. They appear to do API based trading like Interactive, along with Crypto, like Coinbase, and payment for orderflow like Robinhood. 

 

Does anyone use this who can chime in on the plusses or minuses of the platform, or if you know of people there and can comment on the culture etc. Cheers.