Hi dpod. Welcome.
I started off with the Nexus a bit less than 12 month ago. I got use to flying in all condition, light wind to heavy winds where the leading edge starts to flap like chicken when flying across the window.
Once I could keep in the air I started to try and do some tricks. One it can do is a back flip and a lazy susan with a bit of luck. I could get an ugly axle out of it to but not much more. It didn't stop me trying though.
The next kite was the 4D for when the wind is a bit to light.
I than move on the a Sliverfox 2.3. The first thing I notice was the pull. It wasnt drag across the park type, but a big step up. The other was the twitchy ness of it. I was always over steering it for the first few sessions. The main thing is tricks can start to be done on the a better kite. I been flying it for a few months now and it's good fun trying to learn all the tricks. But if you can find some one to learn off it speed things up a lot.