Hard to tell if this service is legit I would be wary of using this service, it is certainly not a 24 hour turnaround. My $25 confirmed within an hour and they didn't reach out for 5 days asking if i'd still like the transaction accelerated. This isn't too helpful since the transaction could've already been accelerated in that time for a similar price through a service like mempool.space, so I was not able to tell if simply waiting or BTCNitro helped push it through.

I paid my fee to get my transaction… I paid my fee to get my transaction accelerated Thursday 12/21 Still waiting on confirmation. These guys are being as helpful as they can. I would 10/10 recommend these guys.

They tried but couldn’t get my… They tried but couldn’t get my transaction to go through the fees are crazy high right now. They promptly refunded my fees and I wouldn’t hesitate to use their services in the future. They deserve 5 stars but due to events beyond their control I gave them 4.

Btcnitro may have accelerated my transaction, bless their heart. Btcnitro may have accelerated my bitcoin transaction. There is really no way of knowing. Since they asked me to review their service, I will say it was pretty good. Now when it was a free service, it's like asking your mom to kiss your ouchie, to make it heal faster, and who knows if it actually helped. I like to believe they have some connection to mining pools or whatever can make transactions go through faster. Mine said 144 blocks, and after paying them the $25 flat fee, it did indeed go through. Are they magic? Do they know something I don't? No one really knows. What we do know, is that we all need services like this to be around, so we can submit our stuck transactions, and hope they can indeed do what they say.

Customer support gives quick feedback… Customer support gives quick feedback on issues and does everything in their power to help move your transaction along as quickly as possible. 10/10 would recommend their service and will use again if ever needed.