Providers - and adviser Almary Green - have given their verdicts on news today that the government plans to lift NEST's contribution cap and transfer restrictions in 2017.
Standard Life head of workplace strategy Jamie Jenkins said he welcomed the move.
"I'm very supportive of lifting the restrictions, and the timing suggested, as it links in with the full introduction of auto enrolment.
"It is also quite important timing in terms of the small pot regime as the next four to five years is a good time scale to deal with that. NEST is a hugely important part of the landscape and this seems like a very sensible way forward."
Aegon, which has previously said restrictions placed on NEST are there to protect savers from poor retirement outcomes and scrapping them would be "a mistake", gave a more muted response to the today's news.
Aegon UK regulatory strategy director Steven Cameron said: "Now the government has started to take steps to remove the NEST restrictions it's important that any bias towards NEST is also removed - sooner rather than later.
"The government and the Pensions Regulator should look at how they communicate NEST to employers and make sure that they don't overly influence their decision in selecting a scheme.
"NEST may also need to review its proposition to make sure it's appropriate for a wider potential customer base.
"Removal of the NEST restrictions, once again, highlights the need for employers to get professional advice."
Axa also warned pension savers to approach the news with "a balanced view".
AXA Wealth head of retirement planning Andy Zanelli said: "On the one hand, this is a step towards having a core retirement fund, provided at a low cost, for employers to contribute to. Allowing uncapped contributions and transfers is appealing from the perspective of cost and simplicity.
"On the other hand, the danger could be that many consumers may see this as the solution to the retirement problem which is much wider than a low cost unadvised scheme."
Zanelli cited recent research from AXA Wealth, which suggested that the average shortfall in pension provision for UK adults is more than £4,600 per year.
"These are significant sums for people to make up once in retirement and while it may seem a daunting prospect, which would be eased by a lottery win, proper long-term financial planning is the key.
"Consumers should still make sure that they are looking for the right level of financial planning advice that takes into account their asset wealth at retirement and blends the appropriate solutions and tax wrappers together to achieve their ambitions. Cost is just one of the factors to think about."
However Almary Green managing director Carl Lamb called on the government to stop moving the pension goal posts.
"It's high time the government stopped changing its mind about pensions. This constant meddling and changing of goal posts is harming both the pensions market and those consumers attempting to save for their retirement," he said.
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