Never heard of it before. What's the price? And what else can you get for the same money?
From my experience, I'd stay with servos from well known manufacturers like KO Propo, Futaba, JR, Airtronics... You might be luck with the blue bird, but there's quite a mechanical load on a servo, so quality matter ! And you can't read the quality-factor in any spec. Also compability might be an issue, so at least you should ensure you can retuirn the blue bird, if it's not compatible with your other equipment.
Schumacher Mi5 - Sanwa MT-4 / RX-462 / KO Propo PDS-2123 - Nosram 5600 X-treme Saddle Pack - LRP SPX Zero/X12 17,5 - Nosram Stealth Touch Evolution - MAAS SPS 9250