If you are somewhat proficient, looking at the source code is a big tell tell. Now, if its tip top, it might not be a $500-$100 job. In my experience, Its usually a a 3-4K once all is said and done. This is for a properly coded, valid, modern, semantic, optimized, well designed site. What are you after, top quality, or maybe more on the responsive end. The complaints of the too many tries to get it right is often the result of poor communication when gathering requirements. Whether is giving wrong answers to the devs (common) or the devs asking the wrong questions (this is also common among amateur developers)

Most of us have to. Windows only app or some of us developers that need to test in all platforms (like web sites.) Suffice it to say that its be best commercial platform out there, both in hardware and software.