Don't see why you're getting downvoted. From a user standpoint, IKEv2 doesn't require a secondary client and integrates with most major OS better. For example:

Don't see why you're getting downvoted. From a user standpoint, IKEv2 doesn't require a secondary client and integrates with most major OS better. For example: It's way easier for a client to install a mobileconfig to ios that supports on demand VPN than it is to have them download and configure openvpn. Fairly set and forget.