I've been coming to Ter Elst for a few years now and it's typically my preferred choice of Hotel. Staff is friendly and helpful and make you feel welcome. The rooms are spacious and have recently been renovated. There's abundance of parking space available and it's free. And to top if off, the hotel is close to the E19 which makes it very easy to drive anywhere. Antwerp is only 15 minutes away. Even so, because the hotel is outside the major cities, it's nice and quiet so you get a good night sleep!
There's not a lot of negative to say about this place, however you might be fussed about some of the following.
Although breakfast isn't spectacular, it's very solid and will not leave you hungry. The gym next door is ok (and free!), but not very modern and could do with upgrades. The channels available on the television are very limited and certainly not targeted at Belgians as most commercial Belgian channels are not available (which I personally found very weird). And yes, the WiFi has a complex log-in mechanism that could really do with some simplification (hello Telenet!). You wonder why they bother because anyone in range of the WiFi is a hotel guest!
Final tip: make sure you grab a thicker pillow from the closet as the ones they put on the bed standard are so thing you will wake up with a sore neck :)
Having said that, a very solid hotel that I'm always happy to return to.