The "Prima finance" offer is €499 plus vat. The V.A.T. €104.79, makes it €603.79. The total outlay on a normal new house purchase with mortgage is in the region of €750.00, which would bring total Prima finance cost to circa. €1,353.79. So, the "cheapest" package to some extent depends on the size of your REA refund, which is in turn based on the commission rate and the size of the mortgage.
As a separate but related issue, I don't believe it is economically viable for any solicitor to offer an adequate conveyancing service for €499, and this offer is only available if you use Prima as a mortgage broker. I therefore assume (but am open to correction) that the Prima-Finance solicitor gets some sort of top-up from Prima-finance out of the mortgage commission, so as to make it viable.
I don't like the idea of a solicitor being paid by somebody other than the customer. I can't quite put my finger on what it is that I don't like about it, but I think it is a step on the wrong direction. Once a solicitor starts relying on referral fees, top up fees, commissions etc., instead of simply charging a fee direct to the client, I think it perhaps weakens the position of absolute independence from which all legal advice should be dispensed. This is not, of course, to say that any solicitor on the Prima finance panel is giving anything less than 100% independent advice. But, rather like Caesar's wife, I think I would prefer not to give even the remotest cause for complaint.
For this reason alone, I prefer the REA business model as being more transparent.
Although a practising solicitor, I have no connection with either service.