Well, after about 10 or 20 tryes i did manage to enter the game.
But the servers or their bandwith seem to be way underpowerd.
The forge is running fine, chat is running fine.
I did build a deck, started a solo game, and then it turned out that the reaction time of the game makes it unplayable.
Summoning creatures, casting a spell or even sending troops somewhere has a reaction time of over 2 minutes. Casting a healing spell on my troops caused to let the spell go off when the troops weren't standing on that position any more. You can't do any tacktics because it is pure luck when your troops will react to your go-there command.
I guess skylords-reborn would need at least 10 times more servers with realy good load balancers in front of them.
From todays perspective i'd say the stress test did tell uss that there is *WAY* to much stress to the servers.
So i'll wait and give the developers time to react on this.
If the problem could be solved with more server hardware, i'm sure there are enough enthusiasts out there to donate some dolars.
Comming back to the question "Is it worth to try over and over to connect?"
Well, at this point of time: no
If there are so many players online that the server won't give you a slot, the game won't be playable either.
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EDIT:
After trying another game at 04:00 UTC the game in fact was playable, as known from the good old days before EA did close down their servers.
Seems like in the middle of the night, server load might be lower.