Have enjoyed the GSX suite since I first got my first FSDreamteam product. Umberto and his team simply outdo themselves each time. I do wish that we could get back to multiple buses when you have multiple doors open (especially on larger aircraft). That would be my only gripe :D
Toposim products are among some of the best in the industry bar none. Most folks may be familiar by the older name FSGenesis that Toposim used to go by. Having first used (when he did it for free) and then bought all of his products, I can safely say that Justin Tyme is one of the original mesh pioneers and his sceneries show his attention to detail.