I've been to a few with varying results but decided eventually that i needed solid answers so went to the UK. if you're willing to do the same go to one of the best guys out there www.cliftonbradeley.co.uk
. Cheap flight to Manchester, train to Stoke on Trent. Day trip.
He won't make you stand a stupid box of foam, or take plaster casts of your feet. It's all digital and his knowledge of Biomechanics is second to none. He has a specialist team that make the orthotics in line with the results of your 2-3hr assesment. The orthotics are ready to test straight away and you take them home with you.
Most places here have to send them off the info/molds to the US/Canada and wait a few weeks to be sent back, making basic obvious changes if required can be difficult.
He is the man when it comes to orthotics. Probably cost you 600 euro total including flights etc but worth every penny in my opinion.
Check out his website, it'll give you all the info' you need. He seen guys like Michael Owen, Tom Chamney etc so is highly thought of.