Trust/Security: Third parties are not Robosats coordinators and doesn't have the same mechanisms as the ones used by Robosats. This doesn't have to be intrinsically bad, but you need to make sure your are well informed.
Privacy: Robosats is completelly anonymous because everything happens under Tor, peer2coordinator2peer and with no other actors involved. As an example, LNP2PBot has Telegram in between, so if you want yo stay private you need to make sure to still use Tor while connecting to Telegram and do it with a pseudonymous user, plus other considerations.