Swapuz: Good BTC→XMR Rate, Poor XMR→BTC Rate
I see that Swapuz gives a competitive rate when converting Bitcoin to Monero, though the exact price can vary between offers. I would use it for BTC→XMR if the live quote is favorable.
For the reverse direction, Monero to Bitcoin, I find Swapuz's rate unattractive and would avoid using it without comparing alternatives. I prefer to shop around or use another provider for XMR→BTC.
Analysis
Recommendation
Use Swapuz selectively: consider it for BTC→XMR after confirming the live rate, but avoid using it for XMR→BTC and compare alternative services to get a better return.
Disclaimer
The Analysis and recommendations provided are for informational purposes only. Any investment decisions should be made at your own risk. Past performance is not indicative of future results. Always conduct your own research and consider consulting with a financial advisor before making any investment decisions.