Feedback Unleashed: Part IV - I am my hair

Short answer: NO.
Resons:
1) The map itself while having a really good spawn rate, mobs in there will give you a hard time, if you don't do max before unleashed.
2) Once you hit 209, you will be 11 levels above mixed golems, which means they will give you 5% less exp.
3) Even if you hit max before patch it will still take you a rather long time to get from 200-210.
4) Solo > party which makes the whole training boring.

1) And this is different from lhc and hoh how? Party play always has a funding requirement to be viable, that's the way training on something you never ohko works.
2) Only reason this makes sense is because there isn't really anything to move on to. You shouldn't be training on the same mobs for 50 (or even 10...) levels past the previous cap any more than you should be training on the same mobs for 50 levels in any other bracket.
4) No it isn't.