55 TH/s and 800 watts are not bad for home solo mining, but this ASIC is still too expensive
You're right, I still got myself one because I haven't found a better way to use the surplus energy from my PV setup meaningfully.
Especially, since politics are planning to take additional fee's for selling them my "green energy".
For my understanding, I paid extra for the great noise levels which makes it feasible to put it into my living room and save a bit on heating.
To hell with politicians, in a year you will recoup your investments and you can already play the mining lottery.
You still won't be able to make a lot of profit with regular mining on such an ASIC.