I like the purple and the chocolate (now a boiled sweet apparently) is nice. The coloured lighting and music set them apart from other low cost airlines. No these things don't increase the average spend but from a customer perspective it surely goes a way to encourage repeat custom.
If I were an investor I'd be happy that they can adapt quite quickly. For example the chopping of INV and the third daily LCYEXT service. However the starting of new bases and serving two airports so close to one another would have me asking why? Also the bringing back of the 195's. On one hand they seem to know what they're doing, but on the other hand they seem to pick ideas out of a hat. Take the SHUTTLE service. Milk runs went out of fashion years ago, for God reason.
For me however I use them every few months. Their prices are now much more accessible, service reliable and friendly. All the things I was from an airline.