Freight Exchanges

Good day all.

I want to put a question out to anybody who uses freight exchanges in their daily work.

What has been your experience with the ones you use? Which ones do you use?

Are there any sites in particular that are seen as the best the industry has to offer.
Anybody use Timocom or Trans.eu?
Which ones do people find best for Euro work, Ireland

FreightAlerts.ie, loadup.co.uk, roadhaulageloads.co.uk truckspace.co.uk, any experiences■■?

Any and all advice will be appreciated and gratefully received. Thanks.