This service is fantastic, and I've been using exactly this for about a week now with the Direwolf20 pack. I didn't really expect this going in (should have!), but my FPS shot up by offloading to a server. Easy invite of friends and family to play on your server. Amazingly reasonable prices.<p>They seem to spin up the servers from cold when somebody connects, which for FTB can take a bit of time. I don't know that I'd pay any more money for faster startup, but it is something I consider before starting MC.<p>A few minor problems that were completely a result of moving from my local Minecraft to minefold:<p>1) It took forever to upload my map. Nothing slow on their end, but when you have a map that's over 100MB, residential connections start to get sad. A time remaining on upload would be nice.<p>2) After the initial upload, the server wouldn't start. Minefold doesn't provide any logs (that I could find, at least) to help diagnose this. I ended up having to pull out a number of things related to Mo' Creatures, a third party mod not included in FTB.<p>Compounding this, Mystcraft got an update in the modpack at exactly the time I was uploading, so versions were mismatched between my local save files and the server's modpack version. I ended up needing to use an NBT editor to remove all kinds of references to dimensions that for whatever reason didn't play nice.<p>Having the server output logs available and having the ability to edit individual files in the save would have simplified this step.<p>3) I had gotten used to having Rei's Minimap display entity radar, but the modpack's SMP version doesn't support setting the MOTD the way it needs to be set to enable that. An easy way to install and configure additional mods on Minefold would be great here.<p>Huge supporter of these guys, they've turned playing Minecraft alone with fans blazing into a ridiculously easy social endeavor with slower fans.