I was looking to pick up a cheap, easy to play wind instrument. I decided to go with a melodica as I know my way around a keyboard. First day I had it I could actually play it, it was so easy to play and nice sounding for very little money, it was an amazing experience. I was somewhat torn between buying this and the other Thomann brand standard melodica, but I think it was worth the slight amount of extra money to get the stylistically cooler looking red and black one. I can't say if the Pro model sounds better than the standard one as I haven't tried it but this one was perfect for my use case as a casual musician.
Pros: Awesome sound, cheap, and looks cool!
Maybe cons: Not sure how different it sounds from the standard as I haven't tried that, so maybe not a con at all!