I would say, watching the first episode, I'll never forget it. Why? because it's actually great!
Let me explain, as an absolute TARtard (I made that up on the spot, as weird as that sounds) I had to watch all versions, and I did (with subtitles). The Brazilian version, Latin American, Israel, Asian and China Rush, and none of them came close the US version the way TARaus did.
TAR Brazil - it only had 1 season and it was alright, but the route was an absolute snoozefest and the contestant (besides the winning female-team, Patricia and Sane) were so bland, I had a hard time watching the whole thing. It was worth seeing an awesome female team win, against a male/male team I may add, but TAR Brazil was boring, and that's probably why it's canceled.
TAR Latin American - the producers are showing some effort, but unfortunately it's still a stale version. the route once again is very very boring and most of the contestants were slightly insufferable. The first season was alright, and the second was better, but I'm not a fan.
TAR Israel- while I admire its attempts at standing out and being unique, it kind of "crashes and burn" with this approach, I really like the route (it's similar to TARaus's, go figure). The biggest problem however is the host (can't remember his name) he is so bland and forgettable that you could replace him with a robot and nobody would know the difference. Phil is the best, Allan is annoying but I guess his cheesiness is entertaining at times, and Grant is also pretty robotic, but has a strange charm. The only team I really rooted for was Ferna and Fran (and maybe the Kapputz members, a little), the other teams weren't unlikable or mean, just unrootable. Israel needs to step it up with season 2
TAR Asia - Where do I begin with this one? It started strong, and crashed and burned at the end, kinda reminds me of the Shrek series, the first one being a really good experience, the second one being a massive improvement, the third nearly causing the serie to "jump the shark", and the fourth one decent, but pales to the first two. TAR Asia's product placement is out of control and I feel like I'm watching an hour-long commercial, TARA 5 (if it ever comes) better change that or the series is dead.
TAR China Rush - The first season was good, albeit a bit bland at times. The second so far is great, but since it hasn't ended yet, I'm not gonna hold my tongue on this one