I have used 99designs twice so far and it has delivered the expected results but it hasn't really impressed me. The level of creativity and innovation of the designers involved in the contests in the lowest level package, that costs $299 for a logo, is very minimal. I have used this platform to create business logos. Review collected by and hosted on G2.com.
The friendly usability of the platform is the upside of the product. It's extremely straight forward, you can edit your brief details at anytime, and message the entire list of designers working on your contest at once, as well as individually. Review collected by and hosted on G2.com.
