This was the best price we could find close to Lille centre and it promised parking (which we ended up not having to use as we found street parking). The hotel itself was more like an apartment complex, with several buildings.
We were concerned by some reviews about lack of hot water or disreputable neighbourhood, but we didn't have problems with either. The location was convenient for the Citadel, but not as close to the Grand Place as I would have liked. It was pretty much a 20-30 minute walk. I didn't think the location was bad--it is across the street from a school and it was fine during the day. At night we felt safe enough, but it was very empty and there were very few businesses open at night there (except a late night grocery and pizza delivery) so someone on their own could be nervous, although nothing ever happened to us. (We only ever got asked for money when we were in the centre of Lille, not near the hotel.)
Our room was fine and clean and the single and double rooms appeared identical except for the price. Our bed was unusually long--I don't know what size it was but it was longer than standard double in length, although not in width. The bed was very cozy and soft and seemed to be made entirely of foam, but it made for very poor sleep, maybe because it was too soft for us.

Minus: The bathroom. It was very cramped and the fan didn't seem to do anything to remove the steam. The square shower tray had a curtain for two of the sides, but it was fairly small and didn't take much to knock the curtain so that the water sprayed on the floor and bathmat. The curtain itself did not appear to be cleaned, as the lower third of it had that pinkish/orange mildew tint, and as the shower space was so small, it was difficult not to come into contact with the curtain. The shower didn't have anything at all that could be used as a shelf for shampoo or soap, and balacing it on the taps didn't work very well. Additionally the wall-mounted showerhead holder in ours was broken so you had to hold the showerhead the entire time. However, the water was plenty hot.

Pluses: The breakfast. It was very good (unusually so--the French stick bread was amazing, the yoghurts were excellent, the pains au chocolat even though tiny were delicious, etc etc). Although it must all be bought in bulk, they didn't skimp on quality and we ate our fill every day.
We had a tiny kitchenette, which was adequate for a holiday stay, with sink, stove, microwave, and some basic cookware and dishes etc.
One of the guys on night reception was friendly and utterly charming and always tried his best to help.

We initially booked this hotel as it was the cheapest we could find with half-decent reviews. We were two couples sharing an apartment and when we entered we were surprised to find that our beds were only separated by a partition rather than a separate room. This made no real difference though to be honest, and the room was light, secure, and well maintained. The hotel seemed to attract a mixture of students, travellers and families, and so from that perspective it was enjoyable place to be. The location is good if you don't mind a 15 minute walk to the more central areas of Lille, and is surrounded by many bars and restaurants. All in all we highly enjoyed our stay here and will be more than happy to return next time we visit this great city.

On the positive side the room and everything in it was clean.... apart from that this place does not have a great deal going for it......made the mistake of taking a bath one morning which resulted in no hot water available for the evening when we decided to try and take a shower before an evening out.! There is a rather unsightly , large white "water boiler" in the bathroom which apparently provides the hot water. We complained to the front desk and were told that because we had used hot water for a bath it would take "one hour to rewarm " ??.......I explained that we had been out all day and not used any hot water for at least 7 hours .Someone then came ,fiddled with some controls in an electrical box and again said "wait one hour ".......but unfortunately we didn't get hot water 'til the following morning ! I appreciate this is a budget hotel but hot water is surely not too much to expect !! Lille is lovely,felt perfectly safe at all times ,even late at night wherever we went ............. but do yourself a favour ,spend a bit more on a better class accomodation and give this place a miss !!!!!

I stayed at the citea lille vauban for a weekend break.

I checked the reviews here and they all seemed to be positive so I went ahead and booked.

i am not sure what the other reviewers were expecting but - I would not recommend this hotel at all.

It was clean-ish, but was like staying in a stale student halls - If you don't mind that for 60euro then this will be fine.

I regret that we didn't spend more time researching an alternative maybe in the old town as this was really lovely.

The surrounding area of the hotel, although it was quite close to the city, we were not confident that it was safe enough to walk home at night after dinner.

Lille is a lovely town though - the old town is beautiful. :)