I am currently testing this platform; the numbers themselves are excellent, but the user experience regarding the number management system—especially with long-term numbers—is poor, as the website suffers from significant lag. Regarding short-term numbers, there are options like s1 through s4, yet many numbers marked as renewable cannot actually be extended after a single use. I hope you can coordinate with the providers to resolve this issue and optimize the system, and I look forward to seeing your company surpass platforms like Daisysms.