It is what it is.
PROS: Affordable, kitchenette, free wireless internet, friendly staff, powerful A/C, good location close to shopping and easy drive down highway to beach or downtown
CONS: bathroom wall needed cleaning or repainting, no daily maid service, no pool, no pets allowed
Just got back from a two day weekend in Corpus visiting with family. We needed a place for 4 people that had a kitchen, in case we wanted to cook seafood. As a result, requiring a kitchen severely limited our choices to only a few places such as condos or suites with kitchenettes. We chose Sun Suites because it was one of the only places in town that could give us a kitchenette for less than $150 a night (we ended up paying only $79 I believe).
We were apprehensive about coming here based on earlier reviews, but we were satisfied with our stay. Keep in mind that they are an extended stay suite, so don't expect daily maid or room service. If we needed anything, the office was more than happy to assist us (change of room due to cigarette odor, more toilet paper or more towels free of charge, replacement of remote battery). Keep in mind that the office operated from about 9AM to 9PM and there was after hours office available until about 5AM... Although it was clean, and the office claimed it was recently renovated, the bathroom walls/door were still dirty and needed cleaning. There were no other problems really, and we enjoyed the use of free wireless internet on our laptop. However, for the most part we enjoyed our stay.
If money is no object, then I recommend staying elsewhere, at Residence Inn or a condo which we also looked at and had a lot more amenities, but was at least $100 more per night.
If you don't need a kitchenette, then you can easily go elsewhere in town for better accomodations at the same price.
If you need a kitchenette, you don't need a pool, you don't need daily maid service, you want something decent in terms of cleanliness and odor, you want something in a decent part of town (it was behind the Cracker Barrel and Outback Restaurant right off of South Padre Island Drive and within driving distance of Padre Staples Mall, 2 Walmarts, a Target, a Best Buy, HEB, etc etc) and you want to spend less than $100, this is pretty much what we found as our only option, what we expected, and what we were satisfied with.