HF jacks will hold, but they shouldn't ever be supporting weight as any jack should not.. I always raise the vehicle, place jack stands, lower it down on the jack stands, and then raise the jack back up to meet the frame, but not lift..
HF jacks are a great value. my 3 ton was $69 on sale. now 3 years old with no issues.. The cylinders are not chromed so they need to be taken care of or they will rust and that will damage the seals. But taken care of. for home type use, they are perfect