I see that Leroy likes them - and I like Leroy's posts here on the Breeze. (This may be that 2015 thread you mention):
www.seabreeze.com.au/forums/Stand-Up-Paddle/Review/Blue-Planet-SUPS And there's some good feedback on the Zone too (pics and a few more links to feedback if you scroll down a few posts)
www.standupzone.com/forum/index.php?topic=30943.0 I've only seen a couple of them here on the Sunny Coast, but they did look good... I reckon yes, they'll do the job and yes, they are well made. That said, 34 may be a bit too wide, IMHO. They have some good 32 wide options that would still be super stable, and better for both flat and the waves.
If you are talking to retailers, talk to the stockists listed on the website. Joints like Stonker know what they are doing.
Just my two cents.