Honestly they seem kinda useless to me. Today, they blocked a bridge which just fucked a bunch of normal people over. Everyone I talked to who was affected by it just said it pissed them off and they've now got less interest in XR.
Aside from that they're blocking construction of a high speed rail, and failing miserably. Bunch of builders have to deal with them playing their bongos and climbing trees by the construction site. Feels ineffective.
A friend of mine was involved with their Danish branch. Her impression is they are a bunch of libs that care more about partying, bickering with each other and walks rather than real action. Also seems to have a lot of toxic idpol stuff going on.
In general a lot of people will get pissed when their day gets interrupted due to direct action. Its the nature of things, and people do not like when their otherwise peaceful day of going to the office and doing nothing there gets interrupted.