Install an Aero's One Piece Event server through the Control Panel (Servers → Select your server → Game servers → Add Game Server → Aero's One Piece Event)
The support is, though always helpful, a bit slow. If you open up a ticket and ask for help, you will get an answer roughly 10-14 hours later,
Besides that, theres no real bad experience i had with ScalaCube.
I would enjoy the possibility to build your own server requirements like: How many players do i want on my server to exist, and how much RAM do i actually need.
At least to some extend.
E.g. If i want to play on a modded server with my 2 friends, i dont really need a server with 8 Gb RAM, and 100 player slots.
I dont know how well that would work in terms of hardware though.