Personally I love the reciprocal checker. It saves me a lot of time checking other peoples sites.
Also it’s a nice tool for the ‘average’ (read: useless) link requests.
You can link fast and easy without being impolite.
It doesn’t take the hard work away of finding quality link partners and requesting good links.
Conclusion: yes I’m happy with it since it saves me loads of time. the valuable linking however is still done by hand and done on other pages than the linksmanager directory.
P.S. any juicy PR7, PR6 or PR5 linkers around? .. just pm me 