Don't know if you know this one...
KR-Micro Reverb
KR-Micro Reverb is an easy to use Reverb processor based on features found on the Reverberation module of the commercial product KR-Space. KR-Micro Reverb is designed for ease of use by adjusting internally the equalization and damping controls to optimal levels for producing a warm reverb sound suitable for a wide range of applications.
Adjustable Early Reflections Size
Adjustable Late reflections size
Adjustable Diffusion control
Adjustable Decay control.
Adjustable Early/Late Reflections mix control
Dry/Wet Mix adjustment.
Host Sampling Frequency up to 96KHz
For Microsoft Windows OS (VST) suitable for all Pentium CPUs
Support for User definable presets (Save & Load) via Host interface
And it's
free