HR have been great, all the people we dealt with (Amy, Charlie-Mai {sp} and Matthew). We are buying through them (finally exchanged) and they have been so helpful, initially keeping the chain alive when our first buyers pulled out, managing various people in a complex chain (two properties to sell), preparing to take over our sale, but standing aside when our original agents managed to sell again and most importantly, keeping communication with us all the time (picking up the phone and telling us the current situation at each step).
I would recommend them to others and definitely use them if we sell again.