Welfare Hutch pipe system

Before I go ahead with an expensive order from Welfare Hutches, I need my mind putting to rest about the pipe connecting system.
Is it REALLY a secure system?
I'm nervous about being at work all day and it coming undone and the rabbits getting out unsupervised.
Could people who have the Welfare Hutch pipe system let me know how you've found it please?
Thank you so much

I've never used welfare hutch pipe system, I used runaround pipes and connectors when I had outdoor rabbits. They are very well made and there's no way a rabbit can chew the connector parts :thumb: hopefully someone who has welfare hutch pipes will advise

Thanks.
I've decided against using a pipe system and going to get a custom made run that can stand alone or be attached to the hutch.