
More suitable options exist!
It's hard to call this a review of this module - what I will say is, I have written about a better option - using "customerror" module.
You can find that and a further comparison of various ways of tackling the error page issue HERE.
Chief among reasons not to use search404 is that it uses a DB query every time a 404 is generated - even for non-human users - which causes a large performance hit.
Review by NikLP [info] on May 19, 2008 - 12:58

does exactly what it says on the tin
perfect! installed it; tested it with common "not found"m errors i get- and it works just fine. i'd recommend checking the module settings and ticking the box:
[ X ] Jump directly to the search result when there is only one result.
Review by heather [info] on May 18, 2008 - 13:04

Simple, effective
Really great at getting lost users back on track.
Review by khawkins98 [info] on April 24, 2008 - 15:20