HG633 Newest Firmware

Hey all, I "was" a long time sufferer of the dreaded and useless HG633 until I bought myself something more up to the job, but months on my purchase appears to be failing and before I commit to putting my hand in my pocket again. I would be grateful if anyone using the latest firmware which I believe is 1.21 (correct me if I'm wrong) could share their experiences with it and if it makes the HG633 actually useable. How are the wifi dropouts and constant disconnects?

Thanks.