There has been only one block above 1mb so far, and it was 32kb above. You have to give a few days for wallets and miners to safely upgrade.
I would be extremely cautious holding bcas I expect it to be doing up and downs in the 30% range daily.
I suggest you use a wallet that allow to bump the transaction fee via CPFP or RBF in case the network conditoin worsen and you really need the transaction to confirm in the next block.
I know Electrum and Mycelium allow for this (Not mycelium on IOS)
RE: Bitcoin transactions taking longer after segwit switchover