Heechee Rendezvous

I really enjoyed this one, the 3rd installment of the Heechee Saga, quite a bit. Detailing the further adventures of Robinette Broadhead and his wife, but also involving crazed lunatic who grew up as a feral human in a Heechee ship, a former acquaintance of Robin's and his wife, and an old flame from the previous books. And ultimately, there is the titular meeting of the aliens spoken of so frequently but never before met in the series.

While I know there are subsequent installments in the series, I don't know if I'll move on to the next ones as this felt like an entirely satisfying ending to the series. What do you think? Is it worth moving on to the next books?