First off, as far as reality shows go, this one's got a strong hook to it. The basic concept is that for every round the players get a set amount of time to perform the tasks needed to complete challenges with the ability to earn more time via hidden capsules or by being the one to complete the challenge. In each challenge are safety circles that they can stand in where their countdown clocks are frozen. In each round is a secret golden capsule that will allow the finder to subtract time from a rival, as well as hidden bonuses and penalties provided by the host at various points throughout the entire series of levels. If they run out of time or they're the lowest in the ranking at the end of the round they are eliminated with quite a nice vfx flair. The host Cristinini is fantastic, she's got an ascerbic edge to her that comes through even in the dub and she controls the events and challenges as the Master of Time.
The personalities of the contestants are varied, standard reality show mix of cantankerous and (un)cooperative from various occupations and walks of life. If you've ever watched a reality show, you won't find many surprises in terms of alliances/targets/gameplay/etc.
Speaking of the English dub, it's not great. It's available as 'English Audio Description' and that's where it falls down. I'm not visually impaired, but if I were I'd easily get lost as more attention seems to be paid to the show's logo and overhead shots than the actions of the contestants during gameplay. In addition to the lackluster audio description, there is only a single female VA and single male VA to translate what the contestants are saying. Compounding the problem is that the male VA is also the one providing the descriptive audio! Needless to say, it's very easy to get lost if you're not paying attention. Thankfully it's one of those dubs where they leave the original audio intact, but ducked down so you can mostly work out who is saying what. Hopefully, if there is a season 2, they get a more populated voice cast or at least a separate commentator/narrator from the male VA.
If you enjoy competitive reality shows I strongly recommend it and I would really enjoy it if it was imported to the States in our own version. Watch it in the original Spanish with subtitles though, skip the English audio unless you absolutely need it.