Is run faster a convenient purchase?

Hello! I'm making this post to understand whether I should buy run faster or keep saving robux. So I had been saving 200something robux for a while because I thought the valentines set was going to be cheaper. Turns out it's not, so I can't buy that as I can't purchase robux from the app and I'm only gonna be able to get then with a gift card when I go to the mall in may. Yesterday when the new V-day update came, I quickly realised that the map was MUCH bigger and now my outfits do so bad because I don't have time to add final details, colour them how I want, etc.. So I was thinking is it worth it to spend those robux on run faster or should I keep saving them? Thank you!