If you're a SMB looking for a cost-effective solution with a great team to support you in implementation, Impraise is a great solution! As you scale, or if your reviews are complex with various cycles during different timelines, this may not be the right tool for you. All and all, they provided flexibility to ensure our folks had productive feedback conversations 2x/year, and also gave folks the optionality to ask/give real-time and regular feedback above and beyond reviews.
Quick adaption came from the ease of use and that is why I would recommend it. If you need more robust cascading goal capabilities you might have to work at it
Although the old interface was easy, it still can become convoluted at times if an employee has multiple managers. They need to make it easier to for employees who have a manager and a top level manager that need to also see the review.
Reviewsnap's old UI does not allow for employees who have 2 same-level managers. This is an oversight that needs to be addressed.
Impraise is a strong tool for smaller teams given their high-touch customer service and flexible product. As you scale and need more integrated, complex solutions, a system like Workday may make more sense for your business.
Reviewsnap has been comparable to most the systems I've used in the past. I wouldn't say that one of the systems I've used and mentioned above sticks out far above or below the others.
Overall, we have enjoyed Reviewsnap as it gave us all the functionality and ease at a very reasonable cost. That will be abruptly disrupted on December 31, 2018. We will be forced to make a change.