My Bloomsky (Sky1) has been running fine for the last 6 months or so. They sent me a new one after something failed originally (can’t remember exactly what it was). However, I still prefer my primary weather station for accuracy. It is a Lacrosse station that I bought for ~$90 at Costco several years ago. Even with replacing the number of sensors over the years, it still remains cheaper than most other options. It seems to be pretty accurate for temperature and pressure. I normally get “two thumbs up” from the CWOP quality control site (Google it).
If money is no object, get a Davis system. They seem to be the gold standard in personal weather stations, and I will probably upgrade to a Vantage Vue or Vantage fPro2 if I ever need to upgrade again.
Check out the Bloomsky thread on this board - you will probably get more specific answers if you post your question there (Bloomsky Weather Station).