We love Volunteer Impact
We're a mid-size museum and have been using this software for about four years. My favorite aspects are its 1) specificity for volunteer management needs, 2) robust customer support, and 3) frequent updates and improvements based on user feedback. We just had our annual review (a feature of the "plus" account that's well worth it!). Our advisor Josie Connell has really gotten to know our organization and is amazingly skilled in helping us make the most out of the software and applying it to our specific needs. Highly recommend!