Brickset
“Casual LEGO fans reading this might wonder what's so special about the colour, which is officially called bright bluish green. As far as I know it's the only colour that's been retired and re-introduced, after a ten-year hiatus. The 3x scale brick is superficially the same... More as the red one but some piece substitutions have been necessary due to them not being available in teal: most notably the 2x2 round tile has been replaced with 4 1x1 quarter-tiles, which has bumped up the piece count considerably. It's an appealing GWP that makes a nice display piece, perhaps on your desk at work. It's not too 'childish' but would ably demonstrate your love of the brick!”
Full review at brickset.com
Brick Fanatics
“Continuing on from last year’s promotional red brick, the teal brick is the same larger scale recreation of a 2×4 LEGO brick, complete with stand, and this time in teal. That exclusivity and anticipated highly limited stock are two of the main draws to a set that is... More otherwise valued at just £11.99 / $11.99. That simplicity works both ways, and whilst it may seem light on value, ultimately it’s a smart build in a vibrant color, and it does look great on display.”