It does seem interesting,
but I remain skeptical.
This means putting your trust in Obscura, since they're the 1st hop, receiving your data without additional encryption, a new player, who yet has to prove that they're trustworthy.
Sure their Github may show great software, but that doesn't mean we can see which software they might additionally install on their servers.
Meanwhile Mullvad has already been proven to be trustworthy through the best possible review any VPN company can receive, being: Server seized by the feds, but zero useful info retrieved by them.
Which proves they back up their claim of being a No-Log VPN.
Due to this I trust Mullvad,
and don't have any issues with sending them my data.
But I can't put the same faith in Obscura yet, not before they receive a similar "review".