We are using GDPR for our new product which is an online platform to help businesses with their compliance obligations, we have been able to develop this in just 3 months by working closely together with them! They helped us understand what was required of us as well how they could best support us during implementation phase.
I can't think of anything that would make me not recommend tech gdpr. If you need someone who understands your business needs & wants to work hard at it then go ahead! The customer service team has always listened attentively when contacting them about any issues or questions regarding my projects. Also very responsive via email / phone calls whenever needed.