I have had my Honwave IE 3.8 + 20HP for 5 years now. I am very happy with both its handling and performance. I have done several 40 - 50 mile round trips in a day in this boat, it has always done the job well.
Apart from a tear on the underside which was caused by something sharp on the beach that is the only problem I have had.
Every boat has it's pro's and con's, it depends upon what you are prepared to live with. These SIB's are light, easy to launch and retrieve and best of all very economical....the downside is in chop they bounce around like corks and having no Cuddy one has to be prepared for a good drenching.
Sometimes I envy the bigger boats - the cabin, the cooker, the head would be nice.....until I see them messing endlessly around on the moorings or I hear the complaints of big RIB owners about the cost of fuel!
Small boats = a lot more water time by comparison in my opinion.
Yesterday was a classic - excellent weather, decided to go out at last moment - left for Lee on Solent at midday and was in the water half an hour from leaving home. Retrieval the same time. Flush the engine, hose out the boat wheel into garage......try doing that with a big RIB.
Honwave/ Aerotec, Avons, Quicksilvers - all good boats.