I have been visiting Cambridge for business a few times over the last month or so and this was one of the hotels I stayed in. I stayed in this hotel twice and my experience was fairly consistent on both occasions.
When looking around for hotels in the area I noticed that hotels in Cambridge seem to be fairly pricey; this was one of the cheaper hotels (£85-95 per night at the time I stayed). I booked through Superbreak and paid in advance for the room and breakfast.
On arriving at the hotel I was checked in fairly efficiently but on both occasions I had to tell them I had paid in advance - they tried to put £100 security on my credit card, which is unnecessary given the bill had already been settled. On one occasion my room's key card did not work so I had to return to reception to get it re-activated, which was a bit annoying when I had bags to carry.
I ate in the bar (I can't bring myself to call it a restaurant!) on both occasions. The steak was not worth the money (I think it was around £16 so not cheap) as it was not very tender, however the portion of this and it's accompaniments was quite large. I had a cheeseburger on the second occasion (healthy options are few and far between!) and this was okay, if a bit bland.
The room on both occasions was clean, although the hallways do smell of smoke this was not the case in the rooms themselves. There is a large dispenser with soap that acts as an all in one handwash, shower gel and shampoo - I prefer separates and some conditioner but this is a minor point and I suspect fairly standard for a Holiday Inn Express - you get what you pay for!
The bed was comfortable and had a choice of pillow firmness and the room on the second stay was quiet. On the first stay I had some rather noisy girls in the room next door and due to the rooms being interconnecting this did cause a bit of disturbance.
The TV had some additional channels but did not have Freeview and the room also did not include wireless internet access (you can pay extra - £9.95 for 24 hours at the time of writing) - both of which I expect as standard for business hotels these days.
I did not use the breakfast on either occasion so cannot comment on this. Also I understand that the hotel offers special rates for guests at the David Lloyd gym next door but I did not use these facilities.
Check out on the first occasion was swift but on the second there was quite a queue, and despite there being four members of staff behind the reception desk only two were serving (the other two just looked on and did not seem to be engaged in any activities.
To sum up, this was okay for a one night stay for business purposes; reasonably priced for the area, clean and comfortable but I would not stay here for leisure or longer trips.