My wife and I have stayed at the SPI Super8 on numerous occasions (pre-Dolly) for varying lengths of time... but always in the off-season so I can't comment on Spring Break, or Summer Prime time.
We have always been more than satisfied with the value, staff, management, breakfast, and even the other guests that we have met during our stays.
If noise is a problem make a point of NOT getting a room that shares a common door with an adjoining room. There is a significant lose of sound insulation over what one would find between two normal rooms.
The closer you are to the front entrance the more you will hear guests arriving or departing. If it is busy there can be quite a bit of traffic. Booking on the "back" bay side will eliminate that problem. (We usually stay quite close to the front office but it is seldom a problem during the off-season)
If you have a choice, don't take a room opposite the laundry area unless you are an early riser.
Weekends are for partying, sports tournaments, families giving the kids a treat, etc.... it is going to be noisier. Get used to it, It is a universal condition.
This is not a big motel and does not have its own security staff. If they have a problem and the police are busy, there isn't much that can be done in the middle of the night other than verbal cautions.
We hear that the storm damage (island wide) is well on the way to completion and look forward to our next stay at Super8.
We have recommended the SPI Super8 motel to a number of people and all have been more than satisfied.