Nothing at the cottage or really Lincoln itself. The only minor thing was the high parking prices in the marina area. The multi-story seemed the cheapest, especially after 6pm, but otherwise you could walk down there in less than half an hour and get a taxi back for less than the parking.
It was perfect. Free parking, clean, comfortable and fully equipt. 5-10 mins easy walk from the castle and cathedral which are at the top of Steep Hill - Not so easy walking, but well worth it at a steady pace. The marina area is gorgeous with lots of bars and restaraunts. The castle is well worth doing, with the walk around the wall and is very well maintained with friendly staff and lots to do. This was a lovely short break and we had beautiful weather too :)