Holiday Inn is a good hotel - it is clean, the breakfast is good, "everything" seems to be okay. BUT - our family-room was too small. And so was the beds. Compared with other family-rooms in other hotels we did not get value for money.
Especially if you are travelling with small children I recommend that you stay somewhere else - they´ll probably bump into tables, beds, chairs constantly.

Stayed here for 2 nights.

Quick and friendly check in around 10.30pm. Multi story Car Park, at cost, next to the hotel.

The hotel is a sixties style block but more modern inside.

We used the bar and had a decent meal at the hotel . The service was quick and friendly.

Room large as was the bathroom.

The hotel is situated just out of town in a quiet area so there was no noise problem.

Being from the US I was shocked at the price for a Holiday Inn. But compared to the area hotels for location, price, parking convenience it's really a pretty good value. We were attending a show at the autostadt and it's easily walkable.

Room was unremarkable except for the red light in the bathroom which was fun and the elevated bathtub which was a head scratcher. Really big window swings all the way in. I mean it's your average eastern block-looking place but it's ok.

I didn't try wifi here but the internet station is good and cheap. Staff speaks english and is relatively helpful.

I have stayed at the Holiday Inn here in Wolfsburg more times than I can count. The staff are very friendly, Sally and Thomas in the bar look after all the guests with a magic touch and the breakfast is great. The only downside is that the up and down ramps in the garage is not very wide. I dare not park in there ion case I scratch my hire car.