I have used switchover before and found it extremely useful when managing my website and email systems. It works really well and has helped me save money by reducing the amount of servers I am running. I would recommend it to anyone looking to manage their email system and website efficiently. Its great because you dont want to get involved with setting everything up yourself, so you just click one button then its done! And you only pay once rather than monthly which makes it cheaper over time. Also it will auto scale your server according to how much traffic/traffic demand there is at any given moment. So if something goes wrong (and things do) they will make sure theres no downtime or loss of data.