Used it with Blub biodegreaser; felt like having to be too much aggressive with brush for degreasing drivetrain components; although bristles felt to be of good quality however dunno how long will they last, going by the current use. Really not convinced if "toothbrush" and "parts cleaning brush" justified their purpose fully, especially the backend of the toothbrush (felt no use for it), so much so that during cleaning I felt oral toothbrush would do better but I couldn't have been more wrong, old toothbrush didn't stand a chance before the grime I was against; also giving the bike to a local service shop did cross my mind, considering the effort and time I invested into it, didn't feel worth it; if not for the love I have for cycling and my bike.
Plus I am not sure if my experience was not satisfactory due to grime being too tough for the brush and biodegreaser combination I was using or me performing maintenance by myself for the first time that too after having ridden for >400kms without servicing in-between; would try other biodegreaser available in the market and update the review. (I waited almost 15 mins before brushing and after applying degreaser)
Felt the kit to be incomplete without the chain cleaning tool which now I feel would have made task a lot more easy and am seriously considering buying one of those.
Still price is competitive and had read about Pedros story as brand; and was impressed that these guys have been around from since 1989, when I was born and their team working with small family run businesses for manufacturing