Indeed, this place is off the beaten path and the only way that I could make renting a private car worth it was by combining a visit here with a visit to Trang An - Hoa Lu - Van Long; thus, a 2D/1N arranged trip made ticking off two WH sites possible. Contrary to the other reviews that show only disappointment, I was in no doubt impressed by the relics of the Ho citadel. While it's true that it's really just walls and gates, one has to go the level of architecture and construction engineering to appreciate its unique values. The stones used, for example, are definitely of bigger sizes than from other ancient buildings in SE Asia. The way they were fit together also demonstrated high masonry skills as the stone blocks almost have no gaps between them. It is unfair, in my opinion, to impose high expectations on the site as beauty and "grandness" are not really its strengths. But, the little details I observed, as well as its history, fairly justify its inscription. The rural environment in and around the citadel are also a big plus for the experience. Would I recommend it to fellow WHS hunters? Yes.

PS. There is also a conservation centre beside the southern gate where one can see more info about works done on site and findings.