Just had excellent 6 days in Borovets -- first day's skiing 24th was absolutely the best conditions for me (since skiing powder over 15 years ago - difficult, but what a feeling) on the top -- sun, no wind, cold, light powder on very good base -- the rest of the week was very good but some cloud, wind, etc -- unfortunately for those arriving on the 30th it started raining.
Hotel Samakov v good (excellent swim pool, also bowling (4lanes) table tennis, bars ++) but walls a bit thin.