The main advantages of glow are they are bigger and heavier which makes them more stable when flying, easier to see and can handle wind that would ground an electric.
Not much more to repair as long as the crash is not real bad but it is more expensive to get started compared the the planes you have been working with and I would strongly recommend joining a club if you consider flying glow. With a good instructor ,usually free with club membership, flying on a buddy box with you there is very little chance of crashing.
A good idea is to visit a local club and just check it out, they may have a trainer they will be willing to take you up with and show you what its all about.