I was confused at first but it turned out this approach is original, fresh and this show can offer more than expected.
At some points acting was strange, like they were doing this for the first time, but I can understand how they felt after 20 years and one person missing from their lives.
But storyline is promising and can't wait for the next episode. If you were 90210 fan in 90s, you'll love this version too.
Keep watching and don't give up after 10 minutes (like other negative reviews did).