Not a great place to work - Tech Lead Saltwater Creative Employee Review

I don't think there was a single week I worked for Saltwater that I didn't clock well over the 32h I was scheduled for. 10-20+ hrs extra every week, voluntarily & including weekends, to help the company out of the severe backlog they were in when i was hired. In fact, the day I was fired I had just recovered from a 10 day bout with pneumonia where I worked from home and did not take a single day off. According to the owner Christopher Griffon, I was let go because I was late to start work 2 or 3 times during my time here & he was unhappy with the speed at which i conpleted projects. It should be noted that I was hired as a general expert without direct experience in the system the company uses to create websites, and so by definition they were willing initially to work with me as I attempted to quickly get acclimated. I was never given any indication or warning that the few times i was tardy might jeopardize my job and i had only a singular meeting with Grif a few weeks prior to my termination where he told me that he was unhappy with the speed of my work, but I had thought I'd corrected the problem and ibwas expressly told at that time 'it was a learning experience' and my job was secure. I did not receive any indication, good or bad, after that meeting as to whether things were on track moving forward until after my termination. I have been a SWE for 10 years, and consider myself a fast learner, but the company has unrealistic expectations and it seems that most would be doomed to fail working here unless they are already familiar with their system (which Is unlikely as it is not popular at all and lacks documentation) I'll conclude by pointing out that I feel strongly i was taken advantage of, as I was hired on as a full time employee and the week the backlog was essentially clear i was fired. I believe that I was hired effectively as a temporary contract worker and the 'tardy' & 'slow' issues were exaggerated.