The runs up top of gondola are not too bad its the runs to resort that could do with a little snow know. Don't think their snow making is as good as the Alps. Sure you'll have a great time though.
Writing this from the Rila, still haven't been to the top, but it's really not bad. A bit frosty in places and a couple of bare spots but not much. Very skiable and crowded this weekend, probably better Monday on. Don't worry, it's fine. If some more snow comes as predicted it'll be perfect.