Is the Personal Training CE worth it?

While the CE effect is pretty worthless, I just bought it because of Mashu being a waifu. It's up to you if you think Mashu is waifu or not.

Usually is worth to buy the five copies to mlb 'em. If you can't then is not worth, but if Mash is your waifu go ahead. I bought at least one copy just 'cause Mash is best girl.

All MP CEs are worth somewhat, but I'd recommend that you hoard your MPs until the last day when the CEs can be bought because the next line of MP CE is Chaldea Lunchtime, which is far better than personal training.