I think it depends on the complexity of the purchase (im assuming your buying?).
I went for Dermot Deane & Assoc. - (someone whose praised here by many) - on price. But i'm buying a 4 bed semi in a development - its fairly straightforward....and given that the contract I signed leaves me on less than firm ground - it would take an awesome solicitor to make up for this. Given the market conditions, i'm sure most have signed contracts that could end up being less than favourable..
If your the sort that wants to be able to ring up your solicitor on a whim - then these guys are the wrong choice. However, email contact works very well - I actually prefer it this way as the written word provides more clarity, a written record of issues and the opportunity to consider things fully before responding. They always get back with a return email within the working day and the process has been ************************* with them so far.