If I don't have an Access Review Queues privilege on beta sites (i.e. less than 350 reputation), the "review" link does not appear in the top-bar. There is a review queue in beta sites named "Site Self-Evaluation" review which is enabled for a few days which can be reviewed by users even without having an "Access Review Queues" privilege (I don't know exactly how many reputation is required to access this review queue but at least I can access it with 101 reputation). So if I don't see a review link on the top-bar how can I know that this review queue is enabled right now which I can review?
See this picture says what I mean:
Isn't it a good idea to show the "review" link on the top-bar for a few days (i.e. while "Site Self-Evaluation" review queue is enabled) to all user who can access this review queue?
Note: Site Self-Evaluation is very important phase for any beta site. Community evaluates what will Google users' first impression be. The reviews of new users of the site (i.e. users with less reputation) are important. If they can't review just because they don't have a review link, it's a damage of the beta site itself.