Transitioning to SNOO at 6 weeks?

Well, my husband and I have reached the point of desperation from sleep deprivation that we have decided to buy a used SNOO for $750 (new price is $1300). Our baby is 6 weeks old. Curious if anyone has experience transitioning their baby to a SNOO at around this age? I read that when babies are 6-8 weeks old, it may take several days for them to get used to the SNOO. Any input would be much appreciated! Our baby has been sleeping in the Halo Bassinest since birth. He does ok in it (doesn’t refuse to be in it) but he doesn’t sleep for very long at all without fussy. Definitely has a preference to sleep in the dock a tot or in our arms - neither of which we can do for overnight sleep.