Then don't.
Went with ds yesterday, lasted 20 minutes (half of which was changing his nappy).
Place was filthy and dank (and that's by soft play standards).
Under 4's were not allowed on the soft play equipment (including ball pool). They had some dirty toddler group style toys to play with (not that I have anything against toddler groups, I just expect soft-play to be well soft-play). Oh and included ride on things you needed to put money in (like outside supermarkets).
Several parts of the equipment were badly boarded off.
Cafe was filthy and unstaffed (you had to go all way out to reception to get someone to serve you). Jugs of squash etc uncovered.
Baby change was filthy - nappy bins overflowing and suchlike.
The stench of the place was unbelievable and made me gag (and my sense of smell isn't that strong). It was so strong I couldn't actually smell ds dirty nappy when it was in my face.
IT is truly a complete shitehole. I wouldn't go back if you paid me.