I have the Harbeth P3esr speakers, and they live about 1' from the wall on SoundAnchor stands. They sound great (but they do open up a bit when I move them into the room for critical listening). They are the only Harbeth speakers to use a "sealed box" design (the others have ports), which gives the P3esr speakers quite a bit of flexibility when it comes to placement.
I must add that I replaced the floor spikes on the SoundAnchors with plain steel carriage bolts (round head). I have a resilient laminate floor (Karndean Loose Lay, specially chosen for its acoustic properties, among other things) over concrete. Moving the speakers is no big deal, and does not poke holes in the floor! Moving speakers spiked to the floor can be a hassle. Costs practically nothing to try!