I think these are great. They feel well machined and stable. I've previously used Sperzels which I find unstable and pretty roughly machined, and now Gotoh 510s which are incredibly smooth and probably my favourite. So on that scale I'd say that these are definitely better than the Sperzels by a long shot, but can't really match the sheer brilliance of the 510s.
Essentially I would use these as my go-to standard tuner for good stability and accuracy without wanting to blow out my budget. They're really dependable and solid and that's what I need from a good set of tuners. They appear to hold tuning stability well, even with extended range guitars, I've just opted to have the Sperzels on my Daemoness changed for a set of these.
Offers include 24% Greek VAT and are valid as long as stocks last. Shipping costs to Greece are 20 EUR, free shipping on orders above 298 EUR. Please click here for international Shipping rates. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany