brian lumley

I was an avid follower of his Necroscope series and his take on Lovecrafts Cthulhu Mythos in Mythos Omnibus. I think I have completed the bookshelf of his work over the years. Anyone else a fan or enjoy Lumleys work on SFF?

I really like Lumley's Necroscope, but I have never read any of the following novels from his series. I have heard that the series ends on a fairly weak note. Is that true? If not the rest of the series, would you recommend any other novels authored by him?