Gulden remains strong and will be successful in the long term. Florin is store of value, to hold and see your wealth grow and is the coin I will first invest in if I didn't have Gulden or Florin, but try invest in both.
The main difference for Florin is you can invest and not worry, the new investors will take care of everything for you. They own 45000 coins so they can't expect a person with < 100 coins to make them rich or do work for them. The effort outside of development must come from the new investors and not the community.
With Gulden there is no investors so the work has to come from the community.