Ranked in these QuestionsQuestion Ranking
Pro Open source
Some parts of the OS are open source.
Con Worst Code Base
Amihai Neiderman, a Kaspersky Labs researcher said, “It may be the worst code I’ve ever seen, Everything you can do wrong there, they do it. You can see that nobody with any understanding of security looked at this code or wrote it.”
Con Lack of apps
Con Aesthetically unappealing
Con Lack of security
With the recent discoveries of a number of security flaws, tizen is no longer a secure OS that it advertises.
Con Based on EFL libraries
A perfect experience of a developer working with EFL: https://what.thedailywtf.com/topic/15001/enlightened