Coveo vs SPSearch2007
The big question is - should one move to the new and improved search in SP2010 or stay with Coveo. That is how much can one spend to get the better solution. Similar choice to that of using Nintex insted of SPD and Visio for Workflows. In both cases much better products than what MS does but costs. MS might be good enough for many.
Easy Admin - yet very powerful for those who need
Great search results without much custom work to get it
Results presented in logical and clever way
Not much of User Guide - poorly explained
Still the Best for Searching
Coveo are still the number one providers of search engines for SharePoint. With the limitations for searching in SharePoint 2003 Coveo was a must and I used it had many of the installation I did. Now with SharePoint 2007 Enterprise Search things have moved forward, but Coveo still brings a lot more to the party and is the most intelligent Searching application for SharePoint.
Perhaps now aimed more at the bigger companies.