I tried this Add-On for a few days and I wanted to share my thoughts and a bit of constructive feedback.
First of all, I think that this bus is an excellent platform for players and modders to use, for many years going forward. It has a huge number of customisable assets that people can use and build upon. I believe that a valuable Add-On is versatile and can be used for a long time. To my opinion, this one definitely is, as you have a wide range of features. All in all, to my opinion it is good quality for money and it is worthy to be bought.
There are also some negative points that I wanted to discuss about, constructively.
First of all, the 600 repaints package is way, way too much. The problem is that none of the repaints have the level of detail (logos, writings, signs, etc.) that would make them feel realistic. They are just colour patterns, while occupying massive disk space. Okay, one could argue that it was to showcase setvars, but that is very inefficient when you already have a very good setvar "tablet" which you can use to customise your bus directly. Then, of course, when you make so many repaints, you are inviting people to comment "did you make X, Y, Z city?" and one can never please everybody. What I believe it should have been done was to make maximum 10-15 repaints per bus, with mostly fictional liveries for existing and popular OMSI maps. This way, you wouldn't bother with copyright issues (please correct me if I'm wrong!), while still providing valuable repaints for the player to use. I believe that making so many repaints was not an efficient use of time. I wanted to share this feedback as this can be a "lesson learned" for all developers in the future.
Furthermore, there are a few features which the Alterr + Morphi Citaro has and this one hasn't, which inevitably leads to unfair comparisons between the freeware and the payware model. I particularly miss the Retarder lever under the steering wheel, which could have been an excellent [setvar]. The scripts for the VDV screen are less realistic than the ones on the Alterr + Morphi Citaro (with payware driver console, to be fair). These are the aspects that I can comment on objectively. I also absolutely agree that maybe some of the stuff I pointed out will come as mods further down the line, which I think is completely fine.
I won't go in great detail, but one more feature I miss is the exterior opening of the first door by the driver. The flap located above the right set of headlights is a plain texture, which is disappointing. It could have been an excellent [setvar] to have the exterior door command either on the flap above the headlights, or on the flap leading to the fuel tank, like so many Citaros have.
All in all, my view of this Add-On is really positive, and I hope my brief insight was useful and respectful. Apologies for writing in English. If any of you want to reply to my message, please feel free to do it in Deutsch and I will translate myself.