PerfectClean Sonic (HX7514/03)

costco warehouse model is about the lowest price you can get for the better motor there are two versions of the motor

I don't know if there's any good ones.  I guess there was a redesign in 2023? Which may explain why some people love it and others hate it depending on how recently they bought. The new ones seem to have a screw in the body that vibrates loose and makes the brushing action terrible.  The cheap ones/double packs you get at Costco and Sam's club were terrible out of the box for me. The mid-level ones like 3000-4000 series used to be a good sweet spot, but also  vibrated themselves apart for me. The expensive ones also seem to break, and now you're just out even more money.  I had to swap to Oral B despite using Sonicare for decades previously 

Search the sub. Get the sonicare 2-pack from Costco. It’s like $100. 

My sonic care finally died after 8+years of use shared with my wife. So heavy usage.  Replaced with a two pack from Costco. 1 died in about 3 months. SonicCare replaced it with an upgraded version and so far it’s been ok. The other one is fine but stays in our travel bag. 

Costco has sonicare 2 packs on sale for $69. Worth it!