I categorically recommend the performer, 11 stars out of 10. The project turned out to be more complicated than both I and Sergey initially imagined due to the total protective system against data parsing, but he managed and solved all the problems. All the difficulties with deadlines were specifically related to the extremely heavy protection. All my numerous requests were taken into account and fulfilled, plus he additionally helped with backup, proxy, server, and advice on setup and usage. Super, thank you!