There's almost no way I can lose tempest trials due to the amount of decent 5* characters I have, but now I have to choose between using the units I haven't maximised so they can gain HM and SP or choosing between my strongest units that often have maxed HM and no need of more SP to form the most efficient team to maximise my score. I'm liking the changes they've made though they'd be even better if I had a +40% unit. Certainly not opening my wallet for a chance at a character I don't like so I don't have to play as much, though.
Honestly I've hit a rut with this game recently. The arena just aggravates me because I'm not a competitive person and I'm sick of seeing the same few units paired with a dancer, but the core character promotion currency is bound to it so I have to tolerate it. Tempest Trials is a long grind with worse rewards than last time, and the new modes are just the same old tired story content recycled for the nth time. GHBs are pretty interesting but once you've solved them they're over.
They've been making some really nice changes around the rewards you get for completing tasks, but the core's just the same old tired stuff. Perhaps I've finally hit my limit after seeing other gacha titles like Fate/Grand Order and Final Fantasy Brave Exvius. I'm definitely considering charging to 40k in these trials then switching to 'log in for rewards daily' mode for a while.