KILLABEE Massage Gaming Chair is one of the most feature-rich and comfortable options on the market. It comes with a built-in massager, lumbar support, head pillow, castors, and a retractable footrest. It is also adjustable to fit a variety of sitting positions. The only downside is that it may not be suitable for larger users. Overall, the KILLABEE Massage Gaming Chair is an excellent choice for gamers who are looking for a high-quality, feature-packed option.