Highly rated portable toilets as of 2015 include the Cleanwaste GO Anywhere Complete Toilet System. RateMyToilet.net rates this model as the best available, and the website offers a list of more of the best outdoor portable toilets on the market.
While the Cleanwaste GO Anywhere Complete Toilet System is relatively expensive, it gets a 4.8 out of five rating according to RateMyToilet.net. Another highly rated toilet according to the website is the Sanitation Equipment Visa Potty Model, which gets a 4.5 out of five and is a little less expensive. According to the website, the best portable toilets are the ones that offer ease of use while also managing waste in an efficient manner.