I have walked way many times past Samsara from Negril Beach Club Condo's down on the beach and from Xtabi back. You have to be alert but it is not bad if you are paying attention. There are some blind curves so check before you round them and walk on whatever side of the road has the most walking space away from road. I enjoy the walks.
As for opinions on Samsara, I have not first hand stayed but have met many who have and it is safe but very budget from those I have heard.