We may not need for domestic use but for commercial needs more speed is always welcome to open up new horizon/use cases.
Yes, it is.
As already mentioned in Q1, it may feel enough for now but may not be enouh in 2-3 years, we will be needing more speed, have diferent new use cases requiring higher speed than what we have now.
They may be able to lauch it by 2023 but I don't think i will be in large scale; it may take good 2-3 year to be wiedely available, may be more.