In general, a twin fin will feel extremely loose and free. The parallel fin placement and the larger size of the fins (compared to standard tri-fin setups) will allow for style-oriented high performance, rail to rail surfing with extreme maneuverability in both small and big, mushy waves alike.
What is a twin fin good for?
Blake Peters: Twin fins have great speed and flow and its a different style of surfing in general; a little more graceful and less aggressive. Twins are great if you are surfing somewhere that has a point break or a wave that lets you run and gives you some open face.
Are twin fins hard to surf?
Your ideal twin fin
Your twin has around 10-15% more volume than your allround shortboard (you can surf it with the same amount of volume, but why would you?). That should make it very easy for you to paddle and catch waves. As it has very little rocker, you need to get used to that in your take off first.