FTB Direwolf20 by CraftersLand is an excellent modded server with lots of potential. The community is very friendly, and it has a balanced modpack of technology, magic, and accessories like trees, blocks, and decorations that builders will love. I believe there only needs to be improvement in three fields to get this server up high on the charts where it will receive the credit it deserves:
1) Active Staff; It's really important in any online minecraft community to have staff that we can ask questions to, get assistance from if there's players problems or bugs, and have fun quirky event areas/games like for holidays.
2) Spawn Shop; the spawn store is very limited and I feel that players in this server would do best being able to set up their own shops with their own price ranges, but that would require players being able to put warp points where their shops at, which is something I feel should be available via minecraft money and not a VIP method like paying with real cash for ranks or a special point system.
3) Random Teleport: I noticed the random teleport doesn't work in this server, which is a big drawback because people need to be able to explore for homes, resources, so if the owner isn't comfortable with the idea of people utilizing this then there should be a Resource World to warp to at least.
Great server it just wiped a few days ago, no lag server restarts automatically when it starts getting laggy.
There are friendly people on here that will most of the time help you out if you need help.