RE: nitro model rc planes
I've put together two different sized Ultimates from Nitroplanes.
They are not completely horrid, but they do have their problems. My Model Tech plane is far worst than the Nitroplanes ARFs.
If you can deal with working around minor problems, the ARF prices are OK.
But yes, the covering does not remove cleanly, you'll replace some (or more) of the hardware, instructions (what instructions?), be ready to reenforce and reglue parts, and be ready to reenforce and reglue parts.
You can forget about ANY support from Nitroplanes/Nitromodels/Raidentech. If you are missing a part, be ready to send back the WHOLE ARF. DO NOT wait for them to ship you a part as if you EVER see it, it will be months later. Instead ask for a replacement ARF or a refund.