i.e, is it not worth wasting my money on 'yet another' 'claimed' good supplement, or could it have positive affects?
Beta-Alanine is a good product, especially if you also take creatine.
take about 4g every day, and you will see improvements over 3 months, then the maximum level of saturation is reached i think.
i take 4g pre-WO or 2g pre, 2g post.
On non-WO days i take two in the morning and 2 before going to bed, as it helps improving your sleep as well.