Thank you for sharing your feedback. We are pleased to hear that your previous V15 served you well, and we understand how disappointing it can be when a newer model does not meet the same expectations, particularly in terms of build quality and performance. The issue you described with roller brush noise and visible plastic deformation is concerning and not representative of the durability we strive to deliver. Your observations are valuable and help us better understand how product changes are perceived by long-time users. If you are open to it, we would be glad to support you, whether through troubleshooting assistance, guidance on assembly and usage, or exploring other possible resolutions. Please feel free to contact our chat or voice support team at any time. Your satisfaction is important to us, and we remain committed to helping you get the most from your Dyson products. Thank you once again for bringing this to our attention.