Advice Please: Nuliie Breast Pump/Breast Pumps Generally

I plan to try and breast feed but feel a bit lost. So I have lots of questions. Has anyone tried the nuliie S32 which is hands free? What should I be looking for in a breast pump? Is it useful to get a pack of 2? Has anyone pumped colostrum prior to baby being born to supplement once they’re here? If so when did you start? I think I read somewhere that if your breastfeeding you should try exclusively feed from breast for the first 2 weeks so no bottles of expressed milk. Does anyone know if this is correct advice please?