Cosco sell some real cheap strollers from around $70+. But is the quality any good?

Cosco Turnabout Tandem

This tandem stroller accommodates two children and features a front seat that reverses for both rear-facing and forward-facing travel.

Cosco Quinny Free Style

Customer Review

I am extremely impressed with this stroller! The assembly directions were clear and I was able to install it without any problems (while babysitting my 5 month old at the same time no less), and the quality of construction was evident. The feature I like the most is the articulated front wheel, which allows for smooth turns.

Granted, I primarily use it for jogging on paved roads or semi-smooth dirt, so I cannot vouch for its stability on rough terrain. Although the manufacturer's description does not give a weight limit, it appears that my son will be able to use it for much longer than comparable strollers with a 40lb max.
I definitely recommend it!

Manufacturer Introduction

Introducing a stylish three-wheel stroller that helps keep active families on the go. Quinny has a long history of providing high-quality, comfortable and innovative strollers to European parents. The Quinny Freestyle 3 features a lightweight aluminum frame with a revolutionary tilt steering system for superior maneuverability.

The centralized rear braking system is easy to operate, and there is even a convenient hand brake to slow the stroller down. The stroller is quick to fold, making it easy for parents to open and close, and the large storage basket is great for holding on-the-go essentials.

For baby's comfort, this stroller features dual rear shocks and air-filled tires for a smooth ride and a multi-position seat with a removable head cushion. The adjustable canopy shades baby from the sun and also features a mesh window that lets a parent check on baby. Additionally, a five-point safety restraint keeps baby secure, and the five-position handle adjusts for parent comfort.