What to buy?

You want to buy 1 of every decoration, start with the cheapest decorations for the parking coins bonus once purchased 1 of each move onto another boost. When you've purchased 1 of each you can then proceed to purchasing the ATK% Buffs and other Buffs you can get with decorations

 

Reasoning;

Why would I tell you to buy 1 of each if you can only apply 1 decoration at a time? Well that's because the boost accumilates whether it is equipped or not, meaning buying 1 of each you acuumilate all of the bonuses.

 

Does Upgrading Decorations Increase Stat increase?

It does not increase the Parking Coins, Remodeling XP or the Adventure rewards % however it does increase your base ATK, HP & DEF.

 

How many times can you park simultaneously?

You can park a total of 5 times for 8 hours, until you collect your rewards then you can park again, You can NOT Park multiple times on your own parking lot. If you think you see clones of someone on their own parking it's because they're paying tax to the owner of that parking.