Although there are so many options in Chiang Mai when comes to renting a Condo, we found The Nimman by Palm Springs to be the best choice mainly because we wanted to have access to a pool and a gym and at the same time to be closer to coffee shops and coworking spaces. The building it's quite new, 24h security, lovely spacious one bedroom condos, fully furnished with a small kitchenette, own wifi and a fantastic rooftop pool and gym situated on Soi 9 in Nimman area.
Around, at minutes walking distance you have all types of restaurants and coffee shops and clubs for every taste. With prices that range from 15000 - 20000 baht/month depends on how long you stay, from my point of view it's the best offer you can get in Nimman considering all the amenities you get access too.
So if you ever plan to go to Chiang Mai and live there for a longer time, I highly recommend this condominium.