If I may share my experience, i have more than 30 pairs of glasses all the way from Zenni back when no one was doing online glasses, to higher end Japanese and European made frames as well as everything in between.
Lenskart excel at serving a segment of the population slightly on the lower end. They have cheap glasses for around $68 for 2 pairs when on offer. Where they are good at is single vision budget frames for those who like the trendy look and do not mind having to change glasses or owning a few pairs for fashion sake. Their quality is serviceable and a key advantage is they have several outlets and some of them, not all though, provide good customer service and skills in adjustment. I don’t wish to go into nationalitic issues but those who man their physical shops are mostly locals. Their frames and lens are cut and fitted in India and delivered to you but you can opt for collection in stores which is what I would recommend as the staff will adjust them to fit you correctly in the shops.
Even for the 2 pairs from lenskart I had for $68, I still got a personal call from them about a month later asking me how they are working out for me and to go back for exchange or troubleshooting if they are not to my standard. I have spent over $1,000 on a pair of spectacles in smaller local optical shops and not one person there called me back to ask how the spectacles are. In fact, the optician who attended to me when I made my pair even forgotten about me cleanly when I recommended my friend to make glasses there just one month after making my pair, quite embarrassing because even my friend didn’t get the vibe that i know him from earlier.
Lenskart are not the best frames and I would avoid them if I were to do progressives or higher range models because the value proposition drops exponentially. If u want a classic, durable, titanium frame with better lenses that u can use for many years, better to go with Japanese frames or Austrian/ German/ Swiss/ Danish frames. Italian ones can be good but also due to the large numbers they mass produce, quality can be all over the place for run of the mill luxxotica ones. Those are even lower in quality than Korean ones made with Ultem or TR90 material.
Objectively speaking, I see Lenskart as good competition (a hybrid model of combining technology with traditional bricks and mortar) and also an impetus for the industry as a whole to up their customer service game and other value added services in order to compete. Btw, I did my eye check physically from their store after i made my online order, they will give u a prescription card which you can upload yourself online or ask the shop to do it for you based on your order number. There was no hardsell or bait and switch.