Pretty good database of locations.
I like the tag search
It's pretty fast
It's easy to pull images from Flickr/Wikimedia to add
Lots of places still don't have photos and have only one tag which makes them hard to discover
No satellite view
Very few reviews
Just yesterday I was looking for a new maps alternative to try and break away from Google. I stumbled upon Sygic but didn't give it a fair shot so now that it's here I tried again and I have to say, it's better than I expected. I am currently travelling in Slovenia so I guess it's not the most used country for the moment. Anyhow, there are quite a few things that I like but I think there's definitely room for improvement. I would love to be able to see a satellite view(I use it often to know if where I'm going there's parking or other features that are not on the map), it's important that I can at least suggest adding/removing tags. Here many waterfalls are categorised only as that, while I think they should have at least the sightseeing tag too. It's the first tag in your search box, if I use it and this great places don't appear I will just think that you are very bad and move on(that's what happened yesterday). Reviewing is as painless as it gets which is nice.
Last but quite amazing if possible, would be a way to import lists from google maps or other services. I have over 600 stars on google maps which make it quite complex to move away. Having an export would be great too.