I like Anchor, same as I did Duet (actually bought a copy of it a few months back). The two major issues I have with both is:
a) the lack of support (this applies more to Duet then to Anchor obviously
b) the lack of multi currency invoicing. Having the need to invoice customers in 4 different currencies means I can't use either Duet or Anchor :(
Other then that, I personally love self-hosted alternatives to expensive SaaS software!
