I've just noticed this thread and I have to say that I'm glad for this decision. I really like GRIN, it doesn't seem to have any weaknesses 
I think the current lack of a windows wallet with GUI is a bit of a hinderance for many users that could be considered a weakness.
Yeah, but I was thinking about the idea behind the project: it is strong, not speculative and new. Technicalities will be overcome soon IMO.