Bitcoin has proven, that it is works fine, even through times of different attack modes (FUD, spam, patenting, +, XT, RV, CW etc). I don't think we have a pressure to raise the blocksize or to force the mass adaption. We don't need no SegWit to make Bitcoin great again, because it is already. Give this baby time to grow, folks.
Does it work well? You are talking about slow transactions, higher transaction fees, and it will go even higher. What does that mean good? So ridiculous.