Now those clever fuckers at Blockstream seem to want to concede somewhat. However, SegWit with 2MB does NOTHING to get rid of the real problem. The real problem is a private takeover of the blockchain to support Blockstream's view of the future where they charge you money to use their private 'side chains' to the disadvantage of the network's miners. This is a wholesale diversion of funds away from network participants into the private pockets of big investors.
SegWit with 2MB will be marketed as an improvement in capacity. However, it will only serve to let the boys at Core continue to build toward a private 'off chain' system owned and controlled by Blockstream.
Fuck Core/Blockstream and their SegWit2MB
That is the big disadvantage of using segwit, we cannot guarantee to decrease the miners fee and other fees perhaps. There are many rumors spreading around such as an increased in the fees much higher than what we are paying now. It sounds discouraging but what we can do we are only holders that hopes when segwit will take over the fees will reduced.