Minecraft Realms is Mojang’s “official” approach to managed Minecraft server hosting. Most of you who are familiar with Minecraft will know that a standalone server has been available to anyone since the birth of Minecraft, and many game hosting companies already have Minecraft server hosting services.
Unfortunately, I have yet to try Minecraft Realms and in essence of that I suggest that you take this post more as an opinion on the subject rather than a fully blown review.
A Minecraft Realms subscription starts at a cost of £8 per month in the UK, which is subsidised if you pay on a quarterly basis. From what I have gathered from the Minecraft Realms website, up to 20 players can be invited to be able to play on your server but only 10 can play simultaneously.
It may be that I have missed something but to me £8 a month for pretty standard features seems a little steep, especially when only 10 players can be on the server at one time. In essence of that, a little Googling can get you some much cheaper deals for pretty much the same server.