I tried too many free reverb VST in recent years, and I have to admit easyReverb is now a part of my TOP 3.
For a long time, my number 1 free reverb was Sanford Reverb. But now, I have to reconsider the first place. There are definitely wonders in freebies world, every music maker has to consider that.
If you search a clean, natural free reverb with an ultra light CPU usage, I suggest you to try easyReverb : you surely won't regret it!;-).