I've used D2T, Etex, and a few other epoxys all with satisfactory results. One think IMO is you need a jig turner to properly distribute and level epoxy. D2T is the most forgiving and usually cures overnight, Although I use mine as it comes from the tube or bottle, they can be thinned with acetone or denatured alcohol to make brushing easier.
Lately I've been using flex coat as it has a UV stabilizer and supposedly will not yellow over time.
The other product I use and do so regularly is DST Internationals Clear concrete sealer high gloss. Vey thin but is dippable and usually take 3-4 coats. Does not need a turner and cures overnight