It took time to discover the problems, that is why I am sharing this and warning others.
Once the hardware is hosted with oneminers re-hosting is expensive, given the large upfront pre-paid costs for infrastructure, warranty, etc.
The action I am taking is stop investing with them, but I have no choice but continue to be a customer for the 70+ miners running in 3 hosting centers.
The goal here should be not to establish who is wrong or right, no ego, but to inform users.
I have seen your posts in the forum about oneminers. From my research so far, it looks quite okay I would say — not best, not worst...
Just to be clear, I’m still in the due-diligence phase and not defending or promoting them in any way, only sharing what I have found so far.
These photos shared here were from old Google Maps posts — now in 2025 it is updated and the building is there. It also matches their Instagram posts where they do walkthroughs through their office in that same building in Prague, showing members of their team and briefly explaining what they do.
I also checked their videos from either Nigeria or Ethiopia, where they visited the sites together with some local authorities and explained how things work there. Of course, I’m aware that videos, offices, and fast support alone don’t guarantee long-term reliability.
I also contacted their support about some questions regarding the agreement, and they responded to me within 1 day on the 24th of December, which I didn’t even expect, hah. They also told me that they would redirect me to their Czech support because I asked for it. I’m from a neighboring country.
For now, I’m preparing some questions for a call with their representative, but if something still seems fishy after the call, I could literally make a trip to their office and have a talk there to be sure.
Basically, their agreement is not very pro-customer oriented, but from my experience with other providers and their agreements, we can’t expect many rights and fixed prices in this sector :/
I can share their responses to my questions here later.
I had some questions for you that I wanted to forward via private message, but you are not accepting messages from newbies, apparently — and it seems I’m still a newbie after having an account for 6 years, alright — so I will write them here.
Do you still experience the 5–20% drop in BTC rewards you were talking about earlier? Is this drop compared to what some official mining calculators show?
Do you mine only BTC? I was thinking about getting into SHA256 and also Scrypt mining, so if you know about any drops with the Scrypt algo, it would be appreciated.
Even with the mentioned percentage drop, from my calculations it still seems more worth it because of their premium hosting prices and also slightly lower machine prices to go with them.
And lastly, if you have any other new experiences with them, either good or bad, could you please share them with us? Also, an average comparison of rewards vs calculator rewards lately would be very much appreciated.
You also mentioned that you wouldn’t recommend them anymore and don’t want to invest with them any further, so I wanted to ask if you moved to some other hosting company and if you have any that I could look into.
Recently, I had a not-so-good experience where I was waiting 3 months until they connected only a replacement miner for the one ordered, because of customs problems in Ethiopia. It is working for now, but the prices are higher compared to Oneminers. The advantage, however, is that I mine to my own pool.
