Kudos' web-based application makes it easy and fun for employees to thank each other, and we've had great success integrating it into our existing Employee Rewards program. We reviewed five similar employee incentive websites, and Kudos definitely had the best interface, reward options, and price. With Kudos, employees are allotted a predetermined amount points every first of the month. You give these points -- tied with a number of present qualities -- to teammates in a public or private post. That feature (along with the reporting) gives us valuable insight into what kinds of things people are getting recognized for over time. But the most important points-related aspect is that you can't spend points unless you receive them from others giving you thanks/kudos. So, everyone has separate giving and spending balances in this system. Spendable points quickly accrue towards a number of digital gift cards for venues like Amazon.com, but we've also created custom, company-specific rewards like time off or vending machine coins for free food and drinks. Kudus even automatically gives points for employee birthdays and work anniversaries. I also like that Kudos is being updated with new features and fixes every month or two, including things I thought about or suggested. There are many more features and benefits to mention here; you'll just have to take a demo to see it in action.
There isn't much that I don't like about Kudos. Some of the backend features are put in places you wouldn't expect, so the website could be more intuitive. Also, there really isn't a good way to correct points given in error, whether the points were given to an unintended person or the points were the wrong amount.