the idea is brilliant and in the longrun i even think that there is much more demand for exchanges as crypto is growing
in the short term there will be the issue with volume, there are trading sites that just fight with low volume and i dont really have seen an "easy" way to get volume fast
Well having a lot of options is a really good idea much more a wallet and exchange is one of the unique features of it. Too add NVO.IO is a kind of wallet/exchange that offer a unanimous account in which consumers will surely love no personal information will be taken from you unlike some wallets that require personal info and verification to be compliant with some government requirements.