It depends on what you want from Almelo. If you want a true immersive event on a historical location, you won't find it in Almelo. Heck, you won't find that in 75% of events in the Netherlands because of our post-war obsession with demolishing everything and building new houses on it (Wavre in Belgium is also infamous for that. I don't think I have ever seen a building built before the 1950s there). But if you want something fun with a decently sized skirmish/battle and a busy, cozy campsite then Almelo is really good.
I enjoyed it in 2015. Just be aware what you're getting into.